253590400040 has 64 divisors (see below), whose sum is σ = 606555648000. Its totient is φ = 95145926400.

The previous prime is 253590400027. The next prime is 253590400043. The reversal of 253590400040 is 40004095352.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (253590400043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1575080 + ... + 1728599.

It is an arithmetic number, because the mean of its divisors is an integer number (9477432000).

Almost surely, 2^253590400040 is an apocalyptic number.

253590400040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253590400040 is an abundant number, since it is smaller than the sum of its proper divisors (352965247960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253590400040 is a wasteful number, since it uses less digits than its factorization.

253590400040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303810 (or 3303806 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 253590400040 its reverse (40004095352), we get a palindrome (293594495392).

The spelling of 253590400040 in words is "two hundred fifty-three billion, five hundred ninety million, four hundred thousand, forty".