31052725 has 12 divisors (see below), whose sum is σ = 42006240. Its totient is φ = 22583600.

The previous prime is 31052717. The next prime is 31052729. The reversal of 31052725 is 52725013.

It is not a de Polignac number, because 31052725 - 2³ = 31052717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 31052725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31052729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56185 + ... + 56734.

It is an arithmetic number, because the mean of its divisors is an integer number (3500520).

Almost surely, 2^31052725 is an apocalyptic number.

It is an amenable number.

31052725 is a deficient number, since it is larger than the sum of its proper divisors (10953515).

31052725 is a wasteful number, since it uses less digits than its factorization.

31052725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112940 (or 112935 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 31052725 is about 5572.4971960513. The cubic root of 31052725 is about 314.3160603815.

Adding to 31052725 its reverse (52725013), we get a palindrome (83777738).

It can be divided in two parts, 310 and 52725, that added together give a palindrome (53035).

The spelling of 31052725 in words is "thirty-one million, fifty-two thousand, seven hundred twenty-five".