25012625 has 16 divisors (see below), whose sum is σ = 34055424. Its totient is φ = 18190000.

The previous prime is 25012621. The next prime is 25012643. The reversal of 25012625 is 52621052.

It is not a de Polignac number, because 25012625 - 2² = 25012621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25012625.

It is not an unprimeable number, because it can be changed into a prime (25012621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7721 + ... + 10470.

It is an arithmetic number, because the mean of its divisors is an integer number (2128464).

Almost surely, 2^25012625 is an apocalyptic number.

25012625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25012625 is a deficient number, since it is larger than the sum of its proper divisors (9042799).

25012625 is a wasteful number, since it uses less digits than its factorization.

25012625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18217 (or 18207 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 25012625 is about 5001.2623406496. The cubic root of 25012625 is about 292.4509865033.

Adding to 25012625 its reverse (52621052), we get a palindrome (77633677).

The spelling of 25012625 in words is "twenty-five million, twelve thousand, six hundred twenty-five".