25057535 has 4 divisors (see below), whose sum is σ = 30069048. Its totient is φ = 20046024.

The previous prime is 25057471. The next prime is 25057553. The reversal of 25057535 is 53575052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25057535 - 2⁶ = 25057471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505749 + ... + 2505758.

It is an arithmetic number, because the mean of its divisors is an integer number (7517262).

Almost surely, 2^25057535 is an apocalyptic number.

25057535 is a deficient number, since it is larger than the sum of its proper divisors (5011513).

25057535 is an equidigital number, since it uses as much as digits as its factorization.

25057535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011512.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 25057535 is about 5005.7501935274. The cubic root of 25057535 is about 292.6259131118.

The spelling of 25057535 in words is "twenty-five million, fifty-seven thousand, five hundred thirty-five".