252557887 has 2 divisors, whose sum is σ = 252557888. Its totient is φ = 252557886.

The previous prime is 252557867. The next prime is 252557891. The reversal of 252557887 is 788755252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252557887 - 2¹¹ = 252555839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252557887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252557867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126278943 + 126278944.

It is an arithmetic number, because the mean of its divisors is an integer number (126278944).

Almost surely, 2^252557887 is an apocalyptic number.

252557887 is a deficient number, since it is larger than the sum of its proper divisors (1).

252557887 is an equidigital number, since it uses as much as digits as its factorization.

252557887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1568000, while the sum is 49.

The square root of 252557887 is about 15892.0699406968. The cubic root of 252557887 is about 632.1017293048.

The spelling of 252557887 in words is "two hundred fifty-two million, five hundred fifty-seven thousand, eight hundred eighty-seven".