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52137531251 = 1317274985819
BaseRepresentation
bin110000100011101000…
…111001011101110011
311222120112222000020222
4300203220321131303
51323234202000001
635541320123255
73524005463201
oct604350713563
9158515860228
1052137531251
1120125305a03
12a13090652b
134bbb86b810
14274858a071
15155237261b
hexc23a39773

52137531251 has 16 divisors (see below), whose sum is σ = 59473260000. Its totient is φ = 45278949888.

The previous prime is 52137531211. The next prime is 52137531269. The reversal of 52137531251 is 15213573125.

It is a cyclic number.

It is not a de Polignac number, because 52137531251 - 226 = 52070422387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52137531211) 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, 564620 + ... + 650438.

It is an arithmetic number, because the mean of its divisors is an integer number (3717078750).

Almost surely, 252137531251 is an apocalyptic number.

52137531251 is a deficient number, since it is larger than the sum of its proper divisors (7335728749).

52137531251 is a wasteful number, since it uses less digits than its factorization.

52137531251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88598.

The product of its digits is 31500, while the sum is 35.

The spelling of 52137531251 in words is "fifty-two billion, one hundred thirty-seven million, five hundred thirty-one thousand, two hundred fifty-one".

Divisors: 1 13 17 221 2749 35737 46733 85819 607529 1115647 1458923 18965999 235916431 3066913603 4010579327 52137531251