25064040 has 64 divisors (see below), whose sum is σ = 79156800. Its totient is φ = 6331392.

The previous prime is 25064029. The next prime is 25064111. The reversal of 25064040 is 4046052.

It is a happy number.

It is a super-2 number, since 2×25064040² = 1256412202243200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25063998 and 25064016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3217 + ... + 7776.

It is an arithmetic number, because the mean of its divisors is an integer number (1236825).

Almost surely, 2^25064040 is an apocalyptic number.

25064040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25064040 is an abundant number, since it is smaller than the sum of its proper divisors (54092760).

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

25064040 is a wasteful number, since it uses less digits than its factorization.

25064040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026 (or 11022 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25064040 is about 5006.3999041227. The cubic root of 25064040 is about 292.6512330654.

The spelling of 25064040 in words is "twenty-five million, sixty-four thousand, forty".