25045149 has 4 divisors (see below), whose sum is σ = 33393536. Its totient is φ = 16696764.

The previous prime is 25045147. The next prime is 25045177. The reversal of 25045149 is 94154052.

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 not a de Polignac number, because 25045149 - 2¹ = 25045147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25045147) 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, 4174189 + ... + 4174194.

It is an arithmetic number, because the mean of its divisors is an integer number (8348384).

Almost surely, 2^25045149 is an apocalyptic number.

It is an amenable number.

25045149 is a deficient number, since it is larger than the sum of its proper divisors (8348387).

25045149 is an equidigital number, since it uses as much as digits as its factorization.

25045149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8348386.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 25045149 is about 5004.5128634064. The cubic root of 25045149 is about 292.5776899337.

The spelling of 25045149 in words is "twenty-five million, forty-five thousand, one hundred forty-nine".