253501420400 has 30 divisors (see below), whose sum is σ = 609037163472. Its totient is φ = 101400568000.

The previous prime is 253501420387. The next prime is 253501420433. The reversal of 253501420400 is 4024105352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 253501420400.

It is a congruent number.

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, 316876376 + ... + 316877175.

Almost surely, 2^253501420400 is an apocalyptic number.

253501420400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253501420400 is an abundant number, since it is smaller than the sum of its proper divisors (355535743072).

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

253501420400 is a wasteful number, since it uses less digits than its factorization.

253501420400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633753569 (or 633753558 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 253501420400 its reverse (4024105352), we get a palindrome (257525525752).

The spelling of 253501420400 in words is "two hundred fifty-three billion, five hundred one million, four hundred twenty thousand, four hundred".