620613051 has 16 divisors (see below), whose sum is σ = 846073344. Its totient is φ = 404468064.

The previous prime is 620613047. The next prime is 620613073. The reversal of 620613051 is 150316026.

It is not a de Polignac number, because 620613051 - 2² = 620613047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620613551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152100 + ... + 156126.

It is an arithmetic number, because the mean of its divisors is an integer number (52879584).

Almost surely, 2^620613051 is an apocalyptic number.

620613051 is a deficient number, since it is larger than the sum of its proper divisors (225460293).

620613051 is a wasteful number, since it uses less digits than its factorization.

620613051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5170.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 620613051 is about 24912.1065147049. The cubic root of 620613051 is about 852.9828539997.

Adding to 620613051 its reverse (150316026), we get a palindrome (770929077).

The spelling of 620613051 in words is "six hundred twenty million, six hundred thirteen thousand, fifty-one".