25049988 has 36 divisors (see below), whose sum is σ = 63831040. Its totient is φ = 8282736.

The previous prime is 25049977. The next prime is 25050001. The reversal of 25049988 is 88994052.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1833 + ... + 7311.

Almost surely, 2^25049988 is an apocalyptic number.

It is an amenable number.

25049988 is an abundant number, since it is smaller than the sum of its proper divisors (38781052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25049988 is a wasteful number, since it uses less digits than its factorization.

25049988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616 (or 5611 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 25049988 is about 5004.9963036949. The cubic root of 25049988 is about 292.5965318030.

The spelling of 25049988 in words is "twenty-five million, forty-nine thousand, nine hundred eighty-eight".