25121492 has 24 divisors (see below), whose sum is σ = 48777120. Its totient is φ = 11224160.

The previous prime is 25121471. The next prime is 25121507. The reversal of 25121492 is 29412152.

It is a congruent number.

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, 2243 + ... + 7434.

It is an arithmetic number, because the mean of its divisors is an integer number (2032380).

Almost surely, 2^25121492 is an apocalyptic number.

25121492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25121492 is a deficient number, since it is larger than the sum of its proper divisors (23655628).

25121492 is a wasteful number, since it uses less digits than its factorization.

25121492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9751 (or 9749 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 25121492 is about 5012.1344754506. The cubic root of 25121492 is about 292.8746682920.

It can be divided in two parts, 2512 and 1492, that added together give a palindrome (4004).

The spelling of 25121492 in words is "twenty-five million, one hundred twenty-one thousand, four hundred ninety-two".