50257652261 has 4 divisors (see below), whose sum is σ = 50274302400. Its totient is φ = 50241002124.

The previous prime is 50257652251. The next prime is 50257652293. The reversal of 50257652261 is 16225675205.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16225675205 = 5 ⋅3245135041.

It is a cyclic number.

It is not a de Polignac number, because 50257652261 - 2¹⁰ = 50257651237 is a prime.

It is a super-2 number, since 2×50257652261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50257652251) 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, 8320541 + ... + 8326578.

It is an arithmetic number, because the mean of its divisors is an integer number (12568575600).

Almost surely, 2^50257652261 is an apocalyptic number.

It is an amenable number.

50257652261 is a deficient number, since it is larger than the sum of its proper divisors (16650139).

50257652261 is a wasteful number, since it uses less digits than its factorization.

50257652261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16650138.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 50257652261 in words is "fifty billion, two hundred fifty-seven million, six hundred fifty-two thousand, two hundred sixty-one".