25210049 has 4 divisors (see below), whose sum is σ = 25236480. Its totient is φ = 25183620.

The previous prime is 25210027. The next prime is 25210067. The reversal of 25210049 is 94001252.

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 a de Polignac number, because none of the positive numbers 2^k-25210049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25210349) 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, 11729 + ... + 13710.

It is an arithmetic number, because the mean of its divisors is an integer number (6309120).

Almost surely, 2^25210049 is an apocalyptic number.

It is an amenable number.

25210049 is a deficient number, since it is larger than the sum of its proper divisors (26431).

25210049 is an equidigital number, since it uses as much as digits as its factorization.

25210049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26430.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 25210049 is about 5020.9609637997. The cubic root of 25210049 is about 293.2184069699.

It can be divided in two parts, 252 and 10049, that added together give a palindrome (10301).

The spelling of 25210049 in words is "twenty-five million, two hundred ten thousand, forty-nine".