231650425 has 12 divisors (see below), whose sum is σ = 287442540. Its totient is φ = 185193920.

The previous prime is 231650401. The next prime is 231650429. The reversal of 231650425 is 524056132.

It can be written as a sum of positive squares in 6 ways, for example, as 11751184 + 219899241 = 3428^2 + 14829^2 .

It is not a de Polignac number, because 231650425 - 2⁷ = 231650297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231650393 and 231650402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231650429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55719 + ... + 59731.

It is an arithmetic number, because the mean of its divisors is an integer number (23953545).

Almost surely, 2^231650425 is an apocalyptic number.

231650425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231650425 is a deficient number, since it is larger than the sum of its proper divisors (55792115).

231650425 is a wasteful number, since it uses less digits than its factorization.

231650425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332 (or 6327 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 231650425 is about 15220.0665241647. The cubic root of 231650425 is about 614.1545878270.

The spelling of 231650425 in words is "two hundred thirty-one million, six hundred fifty thousand, four hundred twenty-five".