25142454 has 32 divisors (see below), whose sum is σ = 56039040. Its totient is φ = 8355816.

The previous prime is 25142413. The next prime is 25142477. The reversal of 25142454 is 45424152.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 29989 + ... + 30815.

It is an arithmetic number, because the mean of its divisors is an integer number (1751220).

Almost surely, 2^25142454 is an apocalyptic number.

25142454 is an abundant number, since it is smaller than the sum of its proper divisors (30896586).

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

25142454 is a wasteful number, since it uses less digits than its factorization.

25142454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1395 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 25142454 is about 5014.2251644696. The cubic root of 25142454 is about 292.9561062895.

The spelling of 25142454 in words is "twenty-five million, one hundred forty-two thousand, four hundred fifty-four".