25515052 has 12 divisors (see below), whose sum is σ = 45858400. Its totient is φ = 12412656.

The previous prime is 25515029. The next prime is 25515053. The reversal of 25515052 is 25051552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25515053) 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, 86052 + ... + 86347.

Almost surely, 2^25515052 is an apocalyptic number.

It is an amenable number.

25515052 is a deficient number, since it is larger than the sum of its proper divisors (20343348).

25515052 is a wasteful number, since it uses less digits than its factorization.

25515052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172440 (or 172438 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 25515052 is about 5051.2426193957. The cubic root of 25515052 is about 294.3961679115.

The spelling of 25515052 in words is "twenty-five million, five hundred fifteen thousand, fifty-two".