25047040 has 52 divisors (see below), whose sum is σ = 60154704. Its totient is φ = 10010624.

The previous prime is 25047037. The next prime is 25047047. The reversal of 25047040 is 4074052.

It is not an unprimeable number, because it can be changed into a prime (25047047) 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, 19869 + ... + 21091.

Almost surely, 2^25047040 is an apocalyptic number.

25047040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25047040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30077352).

25047040 is an abundant number, since it is smaller than the sum of its proper divisors (35107664).

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

25047040 is an equidigital number, since it uses as much as digits as its factorization.

25047040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 25047040 is about 5004.7017893177. The cubic root of 25047040 is about 292.5850533090.

The spelling of 25047040 in words is "twenty-five million, forty-seven thousand, forty".