25065040 has 160 divisors (see below), whose sum is σ = 78494976. Its totient is φ = 7188480.

The previous prime is 25065017. The next prime is 25065097. The reversal of 25065040 is 4056052.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79924 + ... + 80236.

Almost surely, 2^25065040 is an apocalyptic number.

25065040 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 25065040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39247488).

25065040 is an abundant number, since it is smaller than the sum of its proper divisors (53429936).

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

25065040 is a wasteful number, since it uses less digits than its factorization.

25065040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25065040 is about 5006.4997752921. The cubic root of 25065040 is about 292.6551250602.

The spelling of 25065040 in words is "twenty-five million, sixty-five thousand, forty".