25421364 has 60 divisors (see below), whose sum is σ = 68627328. Its totient is φ = 8197200.

The previous prime is 25421359. The next prime is 25421369. The reversal of 25421364 is 46312452.

It is an interprime number because it is at equal distance from previous prime (25421359) and next prime (25421369).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25421369) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8779 + ... + 11309.

Almost surely, 2^25421364 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 25421364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34313664).

25421364 is an abundant number, since it is smaller than the sum of its proper divisors (43205964).

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

25421364 is a wasteful number, since it uses less digits than its factorization.

25421364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2567 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 25421364 is about 5041.9603330451. The cubic root of 25421364 is about 294.0353976538.

The spelling of 25421364 in words is "twenty-five million, four hundred twenty-one thousand, three hundred sixty-four".