25778364 has 24 divisors (see below), whose sum is σ = 63315840. Its totient is φ = 8140464.

The previous prime is 25778353. The next prime is 25778369. The reversal of 25778364 is 46387752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25778369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56304 + ... + 56759.

It is an arithmetic number, because the mean of its divisors is an integer number (2638160).

Almost surely, 2^25778364 is an apocalyptic number.

It is an amenable number.

25778364 is an abundant number, since it is smaller than the sum of its proper divisors (37537476).

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

25778364 is a wasteful number, since it uses less digits than its factorization.

25778364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113089 (or 113087 counting only the distinct ones).

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

The square root of 25778364 is about 5077.2398013094. The cubic root of 25778364 is about 295.4054140545.

The spelling of 25778364 in words is "twenty-five million, seven hundred seventy-eight thousand, three hundred sixty-four".