25491374 has 8 divisors (see below), whose sum is σ = 38276040. Its totient is φ = 12732696.

The previous prime is 25491371. The next prime is 25491397. The reversal of 25491374 is 47319452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25491371) 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, 3824 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (4784505).

Almost surely, 2^25491374 is an apocalyptic number.

25491374 is a deficient number, since it is larger than the sum of its proper divisors (12784666).

25491374 is a wasteful number, since it uses less digits than its factorization.

25491374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12994.

The product of its digits is 30240, while the sum is 35.

The square root of 25491374 is about 5048.8982956681. The cubic root of 25491374 is about 294.3050730569.

The spelling of 25491374 in words is "twenty-five million, four hundred ninety-one thousand, three hundred seventy-four".