25572366 has 48 divisors (see below), whose sum is σ = 60877440. Its totient is φ = 7722000.

The previous prime is 25572353. The next prime is 25572367. The reversal of 25572366 is 66327552.

It is a happy number.

25572366 is a `hidden beast` number, since 25 + 572 + 3 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25572366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25572367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6241 + ... + 9491.

It is an arithmetic number, because the mean of its divisors is an integer number (1268280).

Almost surely, 2^25572366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25572366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30438720).

25572366 is an abundant number, since it is smaller than the sum of its proper divisors (35305074).

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

25572366 is a wasteful number, since it uses less digits than its factorization.

25572366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3298 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 25572366 is about 5056.9126945202. The cubic root of 25572366 is about 294.6164353293.

The spelling of 25572366 in words is "twenty-five million, five hundred seventy-two thousand, three hundred sixty-six".