25012422 has 32 divisors (see below), whose sum is σ = 55756800. Its totient is φ = 8311464.

The previous prime is 25012411. The next prime is 25012433. The reversal of 25012422 is 22421052.

It is an interprime number because it is at equal distance from previous prime (25012411) and next prime (25012433).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25012395 and 25012404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25383 + ... + 26349.

It is an arithmetic number, because the mean of its divisors is an integer number (1742400).

Almost surely, 2^25012422 is an apocalyptic number.

25012422 is an abundant number, since it is smaller than the sum of its proper divisors (30744378).

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

25012422 is a wasteful number, since it uses less digits than its factorization.

25012422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 25012422 is about 5001.2420457322. The cubic root of 25012422 is about 292.4501953334.

Adding to 25012422 its reverse (22421052), we get a palindrome (47433474).

The spelling of 25012422 in words is "twenty-five million, twelve thousand, four hundred twenty-two".