5121440051 has 48 divisors (see below), whose sum is σ = 6568886016. Its totient is φ = 3906983808.

The previous prime is 5121440003. The next prime is 5121440081. The reversal of 5121440051 is 1500441215.

It is not a de Polignac number, because 5121440051 - 2²⁶ = 5054331187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5121439999 and 5121440026.

It is not an unprimeable number, because it can be changed into a prime (5121440081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4221521 + ... + 4222733.

It is an arithmetic number, because the mean of its divisors is an integer number (136851792).

Almost surely, 2^5121440051 is an apocalyptic number.

5121440051 is a deficient number, since it is larger than the sum of its proper divisors (1447445965).

5121440051 is a wasteful number, since it uses less digits than its factorization.

5121440051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5121440051 is about 71564.2372348088. The cubic root of 5121440051 is about 1723.7093252029.

Adding to 5121440051 its reverse (1500441215), we get a palindrome (6621881266).

The spelling of 5121440051 in words is "five billion, one hundred twenty-one million, four hundred forty thousand, fifty-one".