252551326051231 has 4 divisors (see below), whose sum is σ = 256691511724264. Its totient is φ = 248411140378200.

The previous prime is 252551326051051. The next prime is 252551326051237. The reversal of 252551326051231 is 132150623155252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252551326051231 is a prime.

It is a super-2 number, since 2×252551326051231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252551326051237) 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, 2070092836425 + ... + 2070092836546.

It is an arithmetic number, because the mean of its divisors is an integer number (64172877931066).

Almost surely, 2^{252551326051231} is an apocalyptic number.

252551326051231 is a deficient number, since it is larger than the sum of its proper divisors (4140185673033).

252551326051231 is an equidigital number, since it uses as much as digits as its factorization.

252551326051231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140185673032.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 252551326051231 in words is "two hundred fifty-two trillion, five hundred fifty-one billion, three hundred twenty-six million, fifty-one thousand, two hundred thirty-one".