5151521051 has 4 divisors (see below), whose sum is σ = 5209403400. Its totient is φ = 5093638704.

The previous prime is 5151521027. The next prime is 5151521087. The reversal of 5151521051 is 1501251515.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5151521051 - 2⁶ = 5151520987 is a prime.

It is a super-2 number, since 2×5151521051² = 53076338277792289202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5151521051.

It is not an unprimeable number, because it can be changed into a prime (5151521021) 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, 28941041 + ... + 28941218.

It is an arithmetic number, because the mean of its divisors is an integer number (1302350850).

Almost surely, 2^5151521051 is an apocalyptic number.

5151521051 is a deficient number, since it is larger than the sum of its proper divisors (57882349).

5151521051 is an equidigital number, since it uses as much as digits as its factorization.

5151521051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57882348.

The product of its (nonzero) digits is 1250, while the sum is 26.

The square root of 5151521051 is about 71774.0973541291. The cubic root of 5151521051 is about 1727.0774998758.

Adding to 5151521051 its reverse (1501251515), we get a palindrome (6652772566).

The spelling of 5151521051 in words is "five billion, one hundred fifty-one million, five hundred twenty-one thousand, fifty-one".