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52505473623 = 3711901129671
BaseRepresentation
bin110000111001100100…
…011111001001010111
312000112012022102022020
4300321210133021113
51330012400123443
640042022304223
73536064106401
oct607144371127
9160465272266
1052505473623
11202a3a75509
12a213b88073
134c49b676b5
1427813a7b71
151574802583
hexc3991f257

52505473623 has 16 divisors (see below), whose sum is σ = 71031209472. Its totient is φ = 34492220000.

The previous prime is 52505473613. The next prime is 52505473633. The reversal of 52505473623 is 32637450525.

It is an interprime number because it is at equal distance from previous prime (52505473613) and next prime (52505473633).

It is a cyclic number.

It is not a de Polignac number, because 52505473623 - 229 = 51968602711 is a prime.

It is a super-2 number, since 2×525054736232 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505473613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340078 + ... + 469748.

It is an arithmetic number, because the mean of its divisors is an integer number (4439450592).

Almost surely, 252505473623 is an apocalyptic number.

52505473623 is a deficient number, since it is larger than the sum of its proper divisors (18525735849).

52505473623 is a wasteful number, since it uses less digits than its factorization.

52505473623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131646.

The product of its (nonzero) digits is 756000, while the sum is 42.

The spelling of 52505473623 in words is "fifty-two billion, five hundred five million, four hundred seventy-three thousand, six hundred twenty-three".

Divisors: 1 3 71 213 1901 5703 129671 134971 389013 404913 9206641 27619923 246504571 739513713 17501824541 52505473623