253952779400 has 24 divisors (see below), whose sum is σ = 590440212570. Its totient is φ = 101581111680.

The previous prime is 253952779387. The next prime is 253952779411. The reversal of 253952779400 is 4977259352.

It can be written as a sum of positive squares in 3 ways, for example, as 218651630404 + 35301148996 = 467602^2 + 187886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 634881749 + ... + 634882148.

Almost surely, 2^253952779400 is an apocalyptic number.

253952779400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253952779400 is an abundant number, since it is smaller than the sum of its proper divisors (336487433170).

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

253952779400 is a wasteful number, since it uses less digits than its factorization.

253952779400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269763913 (or 1269763904 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 53.

The spelling of 253952779400 in words is "two hundred fifty-three billion, nine hundred fifty-two million, seven hundred seventy-nine thousand, four hundred".