621050450 has 12 divisors (see below), whose sum is σ = 1155153930. Its totient is φ = 248420160.

The previous prime is 621050431. The next prime is 621050459. The reversal of 621050450 is 54050126.

It can be written as a sum of positive squares in 3 ways, for example, as 509811241 + 111239209 = 22579^2 + 10547^2 .

It is a super-2 number, since 2×621050450² = 771407322890405000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (621050459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6210455 + ... + 6210554.

Almost surely, 2^621050450 is an apocalyptic number.

621050450 is a deficient number, since it is larger than the sum of its proper divisors (534103480).

621050450 is a wasteful number, since it uses less digits than its factorization.

621050450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12421021 (or 12421016 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 621050450 is about 24920.8838125778. The cubic root of 621050450 is about 853.1831968869.

The spelling of 621050450 in words is "six hundred twenty-one million, fifty thousand, four hundred fifty".