25873764 has 72 divisors (see below), whose sum is σ = 71245440. Its totient is φ = 7285824.

The previous prime is 25873759. The next prime is 25873879. The reversal of 25873764 is 46737852.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46174 + ... + 46730.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^25873764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25873764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35622720).

25873764 is an abundant number, since it is smaller than the sum of its proper divisors (45371676).

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

25873764 is a wasteful number, since it uses less digits than its factorization.

25873764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 648 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 25873764 is about 5086.6259937212. The cubic root of 25873764 is about 295.7693753865.

The spelling of 25873764 in words is "twenty-five million, eight hundred seventy-three thousand, seven hundred sixty-four".