621050451 has 24 divisors (see below), whose sum is σ = 968869584. Its totient is φ = 352820160.

The previous prime is 621050431. The next prime is 621050459. The reversal of 621050451 is 154050126.

It is not a de Polignac number, because 621050451 - 2⁷ = 621050323 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13221 + ... + 37641.

It is an arithmetic number, because the mean of its divisors is an integer number (40369566).

Almost surely, 2^621050451 is an apocalyptic number.

621050451 is a deficient number, since it is larger than the sum of its proper divisors (347819133).

621050451 is a wasteful number, since it uses less digits than its factorization.

621050451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24611 (or 24604 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 621050451 is about 24920.8838326412. The cubic root of 621050451 is about 853.1831973448.

The spelling of 621050451 in words is "six hundred twenty-one million, fifty thousand, four hundred fifty-one".