621462025 has 24 divisors (see below), whose sum is σ = 805495320. Its totient is φ = 475023360.

The previous prime is 621462011. The next prime is 621462031. The reversal of 621462025 is 520264126.

It can be written as a sum of positive squares in 12 ways, for example, as 16941456 + 604520569 = 4116^2 + 24587^2 .

It is not a de Polignac number, because 621462025 - 2⁵ = 621461993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621461984 and 621462002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65907 + ... + 74743.

It is an arithmetic number, because the mean of its divisors is an integer number (33562305).

Almost surely, 2^621462025 is an apocalyptic number.

It is an amenable number.

621462025 is a deficient number, since it is larger than the sum of its proper divisors (184033295).

621462025 is a wasteful number, since it uses less digits than its factorization.

621462025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8973 (or 8968 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 621462025 is about 24929.1400774275. The cubic root of 621462025 is about 853.3716256654.

The spelling of 621462025 in words is "six hundred twenty-one million, four hundred sixty-two thousand, twenty-five".