250005050557 has 4 divisors (see below), whose sum is σ = 250073907136. Its totient is φ = 249936193980.

The previous prime is 250005050539. The next prime is 250005050587. The reversal of 250005050557 is 755050500052.

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 250005050557 - 2²⁷ = 249870832829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250005050587) 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, 34422843 + ... + 34430104.

It is an arithmetic number, because the mean of its divisors is an integer number (62518476784).

Almost surely, 2^250005050557 is an apocalyptic number.

It is an amenable number.

250005050557 is a deficient number, since it is larger than the sum of its proper divisors (68856579).

250005050557 is an equidigital number, since it uses as much as digits as its factorization.

250005050557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68856578.

The product of its (nonzero) digits is 43750, while the sum is 34.

The spelling of 250005050557 in words is "two hundred fifty billion, five million, fifty thousand, five hundred fifty-seven".