25272040 has 32 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 10080064.

The previous prime is 25272019. The next prime is 25272053. The reversal of 25272040 is 4027252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18501 + ... + 19819.

It is an arithmetic number, because the mean of its divisors is an integer number (1782000).

Almost surely, 2^25272040 is an apocalyptic number.

25272040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25272040 is an abundant number, since it is smaller than the sum of its proper divisors (31751960).

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

25272040 is a wasteful number, since it uses less digits than its factorization.

25272040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 25272040 is about 5027.1303941712. The cubic root of 25272040 is about 293.4585496171.

Adding to 25272040 its reverse (4027252), we get a palindrome (29299292).

The spelling of 25272040 in words is "twenty-five million, two hundred seventy-two thousand, forty".