621425066 has 8 divisors (see below), whose sum is σ = 932256864. Its totient is φ = 310672780.

The previous prime is 621425041. The next prime is 621425071. The reversal of 621425066 is 660524126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×621425066² = 772338225306208712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6851 + ... + 35913.

It is an arithmetic number, because the mean of its divisors is an integer number (116532108).

Almost surely, 2^621425066 is an apocalyptic number.

621425066 is a deficient number, since it is larger than the sum of its proper divisors (310831798).

621425066 is a wasteful number, since it uses less digits than its factorization.

621425066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39756.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 621425066 is about 24928.3987853211. The cubic root of 621425066 is about 853.3547083608.

The spelling of 621425066 in words is "six hundred twenty-one million, four hundred twenty-five thousand, sixty-six".