5156431252 has 48 divisors (see below), whose sum is σ = 10654336000. Its totient is φ = 2136844800.

The previous prime is 5156431219. The next prime is 5156431277. The reversal of 5156431252 is 2521346515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1874374 + ... + 1877122.

Almost surely, 2^5156431252 is an apocalyptic number.

It is an amenable number.

5156431252 is an abundant number, since it is smaller than the sum of its proper divisors (5497904748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5156431252 is a wasteful number, since it uses less digits than its factorization.

5156431252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952 (or 4950 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 5156431252 is about 71808.2951475663. The cubic root of 5156431252 is about 1727.6260501429.

Adding to 5156431252 its reverse (2521346515), we get a palindrome (7677777767).

The spelling of 5156431252 in words is "five billion, one hundred fifty-six million, four hundred thirty-one thousand, two hundred fifty-two".