25134420 has 48 divisors (see below), whose sum is σ = 70600320. Its totient is φ = 6681216.

The previous prime is 25134391. The next prime is 25134463. The reversal of 25134420 is 2443152.

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, 30129 + ... + 30951.

It is an arithmetic number, because the mean of its divisors is an integer number (1470840).

Almost surely, 2^25134420 is an apocalyptic number.

25134420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25134420 is an abundant number, since it is smaller than the sum of its proper divisors (45465900).

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

25134420 is a wasteful number, since it uses less digits than its factorization.

25134420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25134420 is about 5013.4239796770. The cubic root of 25134420 is about 292.9248993107.

Adding to 25134420 its reverse (2443152), we get a palindrome (27577572).

The spelling of 25134420 in words is "twenty-five million, one hundred thirty-four thousand, four hundred twenty".