25379529 has 16 divisors (see below), whose sum is σ = 38744448. Its totient is φ = 14476032.

The previous prime is 25379489. The next prime is 25379531. The reversal of 25379529 is 92597352.

It is not a de Polignac number, because 25379529 - 2⁷ = 25379401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25379539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19899 + ... + 21135.

It is an arithmetic number, because the mean of its divisors is an integer number (2421528).

Almost surely, 2^25379529 is an apocalyptic number.

It is an amenable number.

25379529 is a deficient number, since it is larger than the sum of its proper divisors (13364919).

25379529 is a wasteful number, since it uses less digits than its factorization.

25379529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its digits is 170100, while the sum is 42.

The square root of 25379529 is about 5037.8099408374. The cubic root of 25379529 is about 293.8740146954.

The spelling of 25379529 in words is "twenty-five million, three hundred seventy-nine thousand, five hundred twenty-nine".