4625516421 has 24 divisors (see below), whose sum is σ = 7076194944. Its totient is φ = 3018060000.

The previous prime is 4625516377. The next prime is 4625516437. The reversal of 4625516421 is 1246155264.

4625516421 is a `hidden beast` number, since 4 + 6 + 2 + 5 + 5 + 1 + 642 + 1 = 666.

It is not a de Polignac number, because 4625516421 - 2¹¹ = 4625514373 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4625516471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191080 + ... + 213921.

It is an arithmetic number, because the mean of its divisors is an integer number (294841456).

Almost surely, 2^4625516421 is an apocalyptic number.

It is an amenable number.

4625516421 is a deficient number, since it is larger than the sum of its proper divisors (2450678523).

4625516421 is an equidigital number, since it uses as much as digits as its factorization.

4625516421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405063 (or 405051 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 4625516421 is about 68011.1492404003. The cubic root of 4625516421 is about 1666.1729353832.

The spelling of 4625516421 in words is "four billion, six hundred twenty-five million, five hundred sixteen thousand, four hundred twenty-one".