231607025 has 24 divisors (see below), whose sum is σ = 310672824. Its totient is φ = 170265600.

The previous prime is 231607009. The next prime is 231607043. The reversal of 231607025 is 520706132.

It can be written as a sum of positive squares in 12 ways, for example, as 111682624 + 119924401 = 10568^2 + 10951^2 .

It is not a de Polignac number, because 231607025 - 2⁴ = 231607009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231606985 and 231607003.

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, 76847 + ... + 79803.

It is an arithmetic number, because the mean of its divisors is an integer number (12944701).

Almost surely, 2^231607025 is an apocalyptic number.

231607025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231607025 is a deficient number, since it is larger than the sum of its proper divisors (79065799).

231607025 is a wasteful number, since it uses less digits than its factorization.

231607025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221 (or 3216 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 231607025 is about 15218.6407080265. The cubic root of 231607025 is about 614.1162312187.

The spelling of 231607025 in words is "two hundred thirty-one million, six hundred seven thousand, twenty-five".