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53661305207401 = 127953443368271
BaseRepresentation
bin11000011001101111111110…
…00010001111101001101001
321000222222012121211210210021
430030313333002033221221
524013141323113114101
6310043355134320441
714205621111250303
oct1414677702175151
9230888177753707
1053661305207401
11161096a492a021
126027b06659121
1323c3315b79818
14d37314712973
15630cc13425a1
hex30cdff08fa69

53661305207401 has 8 divisors (see below), whose sum is σ = 54140586430464. Its totient is φ = 53182910723040.

The previous prime is 53661305207399. The next prime is 53661305207449. The reversal of 53661305207401 is 10470250316635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53661305207401 - 21 = 53661305207399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53661305207491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221563105 + ... + 221805166.

It is an arithmetic number, because the mean of its divisors is an integer number (6767573303808).

Almost surely, 253661305207401 is an apocalyptic number.

It is an amenable number.

53661305207401 is a deficient number, since it is larger than the sum of its proper divisors (479281223063).

53661305207401 is a wasteful number, since it uses less digits than its factorization.

53661305207401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443369351.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 53661305207401 in words is "fifty-three trillion, six hundred sixty-one billion, three hundred five million, two hundred seven thousand, four hundred one".

Divisors: 1 127 953 121031 443368271 56307770417 422529962263 53661305207401