25705153 has 4 divisors (see below), whose sum is σ = 26088880. Its totient is φ = 25321428.

The previous prime is 25705133. The next prime is 25705177. The reversal of 25705153 is 35150752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25705153 - 2⁹ = 25704641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25705103) 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, 191763 + ... + 191896.

It is an arithmetic number, because the mean of its divisors is an integer number (6522220).

Almost surely, 2^25705153 is an apocalyptic number.

It is an amenable number.

25705153 is a deficient number, since it is larger than the sum of its proper divisors (383727).

25705153 is an equidigital number, since it uses as much as digits as its factorization.

25705153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383726.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 25705153 is about 5070.0249506289. The cubic root of 25705153 is about 295.1254967338.

The spelling of 25705153 in words is "twenty-five million, seven hundred five thousand, one hundred fifty-three".