5051624021 has 4 divisors (see below), whose sum is σ = 5271259872. Its totient is φ = 4831988172.

The previous prime is 5051623957. The next prime is 5051624059. The reversal of 5051624021 is 1204261505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1204261505 = 5 ⋅240852301.

It is a cyclic number.

It is not a de Polignac number, because 5051624021 - 2⁶ = 5051623957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5051624321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109817891 + ... + 109817936.

It is an arithmetic number, because the mean of its divisors is an integer number (1317814968).

Almost surely, 2^5051624021 is an apocalyptic number.

It is an amenable number.

5051624021 is a deficient number, since it is larger than the sum of its proper divisors (219635851).

5051624021 is a wasteful number, since it uses less digits than its factorization.

5051624021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219635850.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 5051624021 is about 71074.7776711261. Note that the first 3 decimals coincide. The cubic root of 5051624021 is about 1715.8408636565.

Adding to 5051624021 its reverse (1204261505), we get a palindrome (6255885526).

The spelling of 5051624021 in words is "five billion, fifty-one million, six hundred twenty-four thousand, twenty-one".