235631025 has 84 divisors (see below), whose sum is σ = 500926272. Its totient is φ = 107658720.

The previous prime is 235631023. The next prime is 235631029. The reversal of 235631025 is 520136532.

235631025 is a `hidden beast` number, since 2 + 3 + 5 + 631 + 0 + 25 = 666.

235631025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 235631025 - 2¹ = 235631023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 235631025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235631023) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 126652 + ... + 128498.

It is an arithmetic number, because the mean of its divisors is an integer number (5963408).

Almost surely, 2^235631025 is an apocalyptic number.

235631025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

235631025 is an abundant number, since it is smaller than the sum of its proper divisors (265295247).

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

235631025 is an equidigital number, since it uses as much as digits as its factorization.

235631025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 1862 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 235631025 is about 15350.2776847847. The cubic root of 235631025 is about 617.6524344070.

Adding to 235631025 its reverse (520136532), we get a palindrome (755767557).

The spelling of 235631025 in words is "two hundred thirty-five million, six hundred thirty-one thousand, twenty-five".