5129412520 has 64 divisors (see below), whose sum is σ = 12540556800. Its totient is φ = 1881066240.

The previous prime is 5129412511. The next prime is 5129412553. The reversal of 5129412520 is 252149215.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 85299 + ... + 132418.

It is an arithmetic number, because the mean of its divisors is an integer number (195946200).

Almost surely, 2^5129412520 is an apocalyptic number.

It is an amenable number.

5129412520 is an abundant number, since it is smaller than the sum of its proper divisors (7411144280).

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

5129412520 is a wasteful number, since it uses less digits than its factorization.

5129412520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217778 (or 217774 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 5129412520 is about 71619.9170622251. The cubic root of 5129412520 is about 1724.6032856525.

The spelling of 5129412520 in words is "five billion, one hundred twenty-nine million, four hundred twelve thousand, five hundred twenty".