25572280 has 16 divisors (see below), whose sum is σ = 57537720. Its totient is φ = 10228896.

The previous prime is 25572263. The next prime is 25572289. The reversal of 25572280 is 8227552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25572289) 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, 319614 + ... + 319693.

Almost surely, 2^25572280 is an apocalyptic number.

25572280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25572280 is an abundant number, since it is smaller than the sum of its proper divisors (31965440).

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

25572280 is a wasteful number, since it uses less digits than its factorization.

25572280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639318 (or 639314 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 25572280 is about 5056.9041913012. The cubic root of 25572280 is about 294.6161050634.

It can be divided in two parts, 25572 and 280, that added together give a palindrome (25852).

The spelling of 25572280 in words is "twenty-five million, five hundred seventy-two thousand, two hundred eighty".