621265245 has 8 divisors (see below), whose sum is σ = 994024416. Its totient is φ = 331341456.

The previous prime is 621265207. The next prime is 621265277. The reversal of 621265245 is 542562126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 621265245 - 2⁶ = 621265181 is a prime.

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, 20708827 + ... + 20708856.

It is an arithmetic number, because the mean of its divisors is an integer number (124253052).

Almost surely, 2^621265245 is an apocalyptic number.

It is an amenable number.

621265245 is a deficient number, since it is larger than the sum of its proper divisors (372759171).

621265245 is a wasteful number, since it uses less digits than its factorization.

621265245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41417691.

The product of its digits is 28800, while the sum is 33.

The square root of 621265245 is about 24925.1929781898. The cubic root of 621265245 is about 853.2815455055.

The spelling of 621265245 in words is "six hundred twenty-one million, two hundred sixty-five thousand, two hundred forty-five".