25078464 has 112 divisors (see below), whose sum is σ = 77053440. Its totient is φ = 7983360.

The previous prime is 25078453. The next prime is 25078483. The reversal of 25078464 is 46487052.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39429 + ... + 40059.

Almost surely, 2^25078464 is an apocalyptic number.

25078464 is a gapful number since it is divisible by the number (24) 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 25078464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38526720).

25078464 is an abundant number, since it is smaller than the sum of its proper divisors (51974976).

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

25078464 is a wasteful number, since it uses less digits than its factorization.

25078464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 25078464 is about 5007.8402530432. The cubic root of 25078464 is about 292.7073611796.

The spelling of 25078464 in words is "twenty-five million, seventy-eight thousand, four hundred sixty-four".