25144379 has 16 divisors (see below), whose sum is σ = 28621824. Its totient is φ = 21924000.

The previous prime is 25144373. The next prime is 25144387. The reversal of 25144379 is 97344152.

It is a cyclic number.

It is not a de Polignac number, because 25144379 - 2²⁰ = 24095803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25144373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16604 + ... + 18054.

It is an arithmetic number, because the mean of its divisors is an integer number (1788864).

Almost surely, 2^25144379 is an apocalyptic number.

25144379 is a deficient number, since it is larger than the sum of its proper divisors (3477445).

25144379 is a wasteful number, since it uses less digits than its factorization.

25144379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538.

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

The square root of 25144379 is about 5014.4171146804. The cubic root of 25144379 is about 292.9635827026.

The spelling of 25144379 in words is "twenty-five million, one hundred forty-four thousand, three hundred seventy-nine".