253360638775 has 24 divisors (see below), whose sum is σ = 323961327648. Its totient is φ = 196435200000.

The previous prime is 253360638767. The next prime is 253360638787. The reversal of 253360638775 is 577836063352.

It is not a de Polignac number, because 253360638775 - 2³ = 253360638767 is a prime.

It is a super-2 number, since 2×253360638775² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663706 + ... + 973255.

It is an arithmetic number, because the mean of its divisors is an integer number (13498388652).

Almost surely, 2^253360638775 is an apocalyptic number.

253360638775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253360638775 is a deficient number, since it is larger than the sum of its proper divisors (70600688873).

253360638775 is a wasteful number, since it uses less digits than its factorization.

253360638775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637163 (or 1637158 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 55.

The spelling of 253360638775 in words is "two hundred fifty-three billion, three hundred sixty million, six hundred thirty-eight thousand, seven hundred seventy-five".