621253112 has 32 divisors (see below), whose sum is σ = 1173780720. Its totient is φ = 308256000.

The previous prime is 621253111. The next prime is 621253153. The reversal of 621253112 is 211352126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621253111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917318 + ... + 917994.

Almost surely, 2^621253112 is an apocalyptic number.

It is an amenable number.

621253112 is a deficient number, since it is larger than the sum of its proper divisors (552527608).

621253112 is a wasteful number, since it uses less digits than its factorization.

621253112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1387 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 621253112 is about 24924.9495887153. The cubic root of 621253112 is about 853.2759907485.

The spelling of 621253112 in words is "six hundred twenty-one million, two hundred fifty-three thousand, one hundred twelve".