621331054 has 16 divisors (see below), whose sum is σ = 936743616. Its totient is φ = 309088000.

The previous prime is 621331049. The next prime is 621331069. The reversal of 621331054 is 450133126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417099 + ... + 418585.

It is an arithmetic number, because the mean of its divisors is an integer number (58546476).

Almost surely, 2^621331054 is an apocalyptic number.

621331054 is a deficient number, since it is larger than the sum of its proper divisors (315412562).

621331054 is a wasteful number, since it uses less digits than its factorization.

621331054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 621331054 is about 24926.5130734325. The cubic root of 621331054 is about 853.3116730681.

The spelling of 621331054 in words is "six hundred twenty-one million, three hundred thirty-one thousand, fifty-four".