25825513 has 8 divisors (see below), whose sum is σ = 30143232. Its totient is φ = 21664896.

The previous prime is 25825493. The next prime is 25825517. The reversal of 25825513 is 31552852.

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

It is a cyclic number.

It is not a de Polignac number, because 25825513 - 2¹³ = 25817321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25825517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38920 + ... + 39577.

It is an arithmetic number, because the mean of its divisors is an integer number (3767904).

Almost surely, 2^25825513 is an apocalyptic number.

It is an amenable number.

25825513 is a deficient number, since it is larger than the sum of its proper divisors (4317719).

25825513 is an equidigital number, since it uses as much as digits as its factorization.

25825513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78551.

The product of its digits is 12000, while the sum is 31.

The square root of 25825513 is about 5081.8808525978. The cubic root of 25825513 is about 295.5854046199.

The spelling of 25825513 in words is "twenty-five million, eight hundred twenty-five thousand, five hundred thirteen".