255587957 has 2 divisors, whose sum is σ = 255587958. Its totient is φ = 255587956.

The previous prime is 255587923. The next prime is 255588007. The reversal of 255587957 is 759785552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224070961 + 31516996 = 14969^2 + 5614^2 .

It is a cyclic number.

It is not a de Polignac number, because 255587957 - 2¹⁸ = 255325813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255587899 and 255587908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255587557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127793978 + 127793979.

It is an arithmetic number, because the mean of its divisors is an integer number (127793979).

Almost surely, 2^255587957 is an apocalyptic number.

It is an amenable number.

255587957 is a deficient number, since it is larger than the sum of its proper divisors (1).

255587957 is an equidigital number, since it uses as much as digits as its factorization.

255587957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410000, while the sum is 53.

The square root of 255587957 is about 15987.1184708189. The cubic root of 255587957 is about 634.6195724916.

The spelling of 255587957 in words is "two hundred fifty-five million, five hundred eighty-seven thousand, nine hundred fifty-seven".