5125898729 has 4 divisors (see below), whose sum is σ = 5858169984. Its totient is φ = 4393627476.

The previous prime is 5125898693. The next prime is 5125898731. The reversal of 5125898729 is 9278985215.

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.

It is a de Polignac number, because none of the positive numbers 2^k-5125898729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5125898929) 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, 366135617 + ... + 366135630.

It is an arithmetic number, because the mean of its divisors is an integer number (1464542496).

Almost surely, 2^5125898729 is an apocalyptic number.

It is an amenable number.

5125898729 is a deficient number, since it is larger than the sum of its proper divisors (732271255).

5125898729 is an equidigital number, since it uses as much as digits as its factorization.

5125898729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732271254.

The product of its digits is 3628800, while the sum is 56.

The square root of 5125898729 is about 71595.3820368325. The cubic root of 5125898729 is about 1724.2093952060.

The spelling of 5125898729 in words is "five billion, one hundred twenty-five million, eight hundred ninety-eight thousand, seven hundred twenty-nine".