252988857061 has 2 divisors, whose sum is σ = 252988857062. Its totient is φ = 252988857060.

The previous prime is 252988857047. The next prime is 252988857073. The reversal of 252988857061 is 160758889252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194953156225 + 58035700836 = 441535^2 + 240906^2 .

It is a cyclic number.

It is not a de Polignac number, because 252988857061 - 2¹⁵ = 252988824293 is a prime.

It is a super-3 number, since 3×252988857061³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252988857161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126494428530 + 126494428531.

It is an arithmetic number, because the mean of its divisors is an integer number (126494428531).

Almost surely, 2^252988857061 is an apocalyptic number.

It is an amenable number.

252988857061 is a deficient number, since it is larger than the sum of its proper divisors (1).

252988857061 is an equidigital number, since it uses as much as digits as its factorization.

252988857061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19353600, while the sum is 61.

The spelling of 252988857061 in words is "two hundred fifty-two billion, nine hundred eighty-eight million, eight hundred fifty-seven thousand, sixty-one".