620772051 has 32 divisors (see below), whose sum is σ = 914995008. Its totient is φ = 372695040.

The previous prime is 620772049. The next prime is 620772067. The reversal of 620772051 is 150277026.

It is not a de Polignac number, because 620772051 - 2¹ = 620772049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620772011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112411 + ... + 117803.

It is an arithmetic number, because the mean of its divisors is an integer number (28593594).

Almost surely, 2^620772051 is an apocalyptic number.

620772051 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

620772051 is a deficient number, since it is larger than the sum of its proper divisors (294222957).

620772051 is a wasteful number, since it uses less digits than its factorization.

620772051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 620772051 is about 24915.2975298309. The cubic root of 620772051 is about 853.0556920282.

The spelling of 620772051 in words is "six hundred twenty million, seven hundred seventy-two thousand, fifty-one".