25212552 has 16 divisors (see below), whose sum is σ = 63031440. Its totient is φ = 8404176.

The previous prime is 25212541. The next prime is 25212553. The reversal of 25212552 is 25521252.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1050523 = 25212552 / (2 + 5 + 2 + 1 + 2 + 5 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (25212553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525238 + ... + 525285.

It is an arithmetic number, because the mean of its divisors is an integer number (3939465).

Almost surely, 2^25212552 is an apocalyptic number.

It is an amenable number.

25212552 is an abundant number, since it is smaller than the sum of its proper divisors (37818888).

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

25212552 is a wasteful number, since it uses less digits than its factorization.

25212552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050532 (or 1050528 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 25212552 is about 5021.2102126878. The cubic root of 25212552 is about 293.2281107906.

The spelling of 25212552 in words is "twenty-five million, two hundred twelve thousand, five hundred fifty-two".