252251917937 has 2 divisors, whose sum is σ = 252251917938. Its totient is φ = 252251917936.

The previous prime is 252251917903. The next prime is 252251917943. The reversal of 252251917937 is 739719152252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135011418721 + 117240499216 = 367439^2 + 342404^2 .

It is a cyclic number.

It is not a de Polignac number, because 252251917937 - 2¹⁰ = 252251916913 is a prime.

It is not a weakly prime, because it can be changed into another prime (252251917637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126125958968 + 126125958969.

It is an arithmetic number, because the mean of its divisors is an integer number (126125958969).

Almost surely, 2^252251917937 is an apocalyptic number.

It is an amenable number.

252251917937 is a deficient number, since it is larger than the sum of its proper divisors (1).

252251917937 is an equidigital number, since it uses as much as digits as its factorization.

252251917937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 53.

The spelling of 252251917937 in words is "two hundred fifty-two billion, two hundred fifty-one million, nine hundred seventeen thousand, nine hundred thirty-seven".