25018064 has 10 divisors (see below), whose sum is σ = 48472530. Its totient is φ = 12509024.

The previous prime is 25018027. The next prime is 25018069. The reversal of 25018064 is 46081052.

It can be written as a sum of positive squares in only one way, i.e., 20178064 + 4840000 = 4492^2 + 2200^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25018069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781799 + ... + 781830.

It is an arithmetic number, because the mean of its divisors is an integer number (4847253).

Almost surely, 2^25018064 is an apocalyptic number.

It is an amenable number.

25018064 is a deficient number, since it is larger than the sum of its proper divisors (23454466).

25018064 is a wasteful number, since it uses less digits than its factorization.

25018064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563637 (or 1563631 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 25018064 is about 5001.8060738097. The cubic root of 25018064 is about 292.4721828077.

The spelling of 25018064 in words is "twenty-five million, eighteen thousand, sixty-four".