2531925 has 72 divisors (see below), whose sum is σ = 5277440. Its totient is φ = 1188000.

The previous prime is 2531923. The next prime is 2531951. The reversal of 2531925 is 5291352.

It is not a de Polignac number, because 2531925 - 2¹ = 2531923 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

Its product of digits (2700) is a multiple of the sum of its prime divisors (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531923) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 81660 + ... + 81690.

2^2531925 is an apocalyptic number.

2531925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2531925 is an abundant number, since it is smaller than the sum of its proper divisors (2745515).

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

2531925 is a wasteful number, since it uses less digits than its factorization.

2531925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 50 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 2531925 is about 1591.2023755638. The cubic root of 2531925 is about 136.2961575230.

The spelling of 2531925 in words is "two million, five hundred thirty-one thousand, nine hundred twenty-five".