25572378 has 16 divisors (see below), whose sum is σ = 55079136. Its totient is φ = 7868400.

The previous prime is 25572377. The next prime is 25572409. The reversal of 25572378 is 87327552.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (25572377) 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, 163848 + ... + 164003.

It is an arithmetic number, because the mean of its divisors is an integer number (3442446).

Almost surely, 2^25572378 is an apocalyptic number.

25572378 is an abundant number, since it is smaller than the sum of its proper divisors (29506758).

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

25572378 is a wasteful number, since it uses less digits than its factorization.

25572378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327869.

The product of its digits is 117600, while the sum is 39.

The square root of 25572378 is about 5056.9138810148. The cubic root of 25572378 is about 294.6164814128.

The spelling of 25572378 in words is "twenty-five million, five hundred seventy-two thousand, three hundred seventy-eight".