621250054 has 16 divisors (see below), whose sum is σ = 959189616. Its totient is φ = 301557600.

The previous prime is 621250031. The next prime is 621250211. The reversal of 621250054 is 450052126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25009 + ... + 43219.

It is an arithmetic number, because the mean of its divisors is an integer number (59949351).

Almost surely, 2^621250054 is an apocalyptic number.

621250054 is a deficient number, since it is larger than the sum of its proper divisors (337939562).

621250054 is a wasteful number, since it uses less digits than its factorization.

621250054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18711.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 621250054 is about 24924.8882444837. Note that the first 3 decimals coincide. The cubic root of 621250054 is about 853.2745907168.

The spelling of 621250054 in words is "six hundred twenty-one million, two hundred fifty thousand, fifty-four".