5431521125 has 24 divisors (see below), whose sum is σ = 6948169800. Its totient is φ = 4239072000.

The previous prime is 5431521119. The next prime is 5431521133. The reversal of 5431521125 is 5211251345.

It can be written as a sum of positive squares in 12 ways, for example, as 4871062849 + 560458276 = 69793^2 + 23674^2 .

It is not a de Polignac number, because 5431521125 - 2⁸ = 5431520869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197201 + ... + 223049.

It is an arithmetic number, because the mean of its divisors is an integer number (289507075).

Almost surely, 2^5431521125 is an apocalyptic number.

It is an amenable number.

5431521125 is a deficient number, since it is larger than the sum of its proper divisors (1516648675).

5431521125 is an equidigital number, since it uses as much as digits as its factorization.

5431521125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25946 (or 25895 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 5431521125 is about 73698.8542991002. The cubic root of 5431521125 is about 1757.8176640968.

The spelling of 5431521125 in words is "five billion, four hundred thirty-one million, five hundred twenty-one thousand, one hundred twenty-five".