253600805090 has 16 divisors (see below), whose sum is σ = 467615143800. Its totient is φ = 98966167680.

The previous prime is 253600805083. The next prime is 253600805093. The reversal of 253600805090 is 90508006352.

It can be written as a sum of positive squares in 4 ways, for example, as 88880900641 + 164719904449 = 298129^2 + 405857^2 .

It is not an unprimeable number, because it can be changed into a prime (253600805093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309268865 + ... + 309269684.

Almost surely, 2^253600805090 is an apocalyptic number.

253600805090 is a deficient number, since it is larger than the sum of its proper divisors (214014338710).

253600805090 is a wasteful number, since it uses less digits than its factorization.

253600805090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618538597.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 253600805090 in words is "two hundred fifty-three billion, six hundred million, eight hundred five thousand, ninety".