250525956761 has 2 divisors, whose sum is σ = 250525956762. Its totient is φ = 250525956760.

The previous prime is 250525956731. The next prime is 250525956817. The reversal of 250525956761 is 167659525052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189338987161 + 61186969600 = 435131^2 + 247360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250525956761 is a prime.

It is a super-2 number, since 2×250525956761² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (250525956731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125262978380 + 125262978381.

It is an arithmetic number, because the mean of its divisors is an integer number (125262978381).

Almost surely, 2^250525956761 is an apocalyptic number.

It is an amenable number.

250525956761 is a deficient number, since it is larger than the sum of its proper divisors (1).

250525956761 is an equidigital number, since it uses as much as digits as its factorization.

250525956761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 250525956761 in words is "two hundred fifty billion, five hundred twenty-five million, nine hundred fifty-six thousand, seven hundred sixty-one".