50072100261657 has 4 divisors (see below), whose sum is σ = 66762800348880. Its totient is φ = 33381400174436.

The previous prime is 50072100261587. The next prime is 50072100261767. The reversal of 50072100261657 is 75616200127005.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50072100261657 - 2²² = 50072096067353 is a prime.

It is a super-2 number, since 2×50072100261657² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50072100261457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8345350043607 + ... + 8345350043612.

It is an arithmetic number, because the mean of its divisors is an integer number (16690700087220).

Almost surely, 2^{50072100261657} is an apocalyptic number.

It is an amenable number.

50072100261657 is a deficient number, since it is larger than the sum of its proper divisors (16690700087223).

50072100261657 is a wasteful number, since it uses less digits than its factorization.

50072100261657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16690700087222.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 50072100261657 in words is "fifty trillion, seventy-two billion, one hundred million, two hundred sixty-one thousand, six hundred fifty-seven".