252621364400 has 30 divisors (see below), whose sum is σ = 606922828932. Its totient is φ = 101048545600.

The previous prime is 252621364381. The next prime is 252621364439. The reversal of 252621364400 is 4463126252.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 315776306 + ... + 315777105.

Almost surely, 2^252621364400 is an apocalyptic number.

252621364400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252621364400 is an abundant number, since it is smaller than the sum of its proper divisors (354301464532).

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

252621364400 is a wasteful number, since it uses less digits than its factorization.

252621364400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631553429 (or 631553418 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 252621364400 in words is "two hundred fifty-two billion, six hundred twenty-one million, three hundred sixty-four thousand, four hundred".