25582380 has 48 divisors (see below), whose sum is σ = 71850240. Its totient is φ = 6801088.

The previous prime is 25582373. The next prime is 25582387. The reversal of 25582380 is 8328552.

It is an interprime number because it is at equal distance from previous prime (25582373) and next prime (25582387).

It is not an unprimeable number, because it can be changed into a prime (25582387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38491 + ... + 39149.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^25582380 is an apocalyptic number.

25582380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25582380 is an abundant number, since it is smaller than the sum of its proper divisors (46267860).

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

25582380 is a wasteful number, since it uses less digits than its factorization.

25582380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 25582380 is about 5057.9027274158. The cubic root of 25582380 is about 294.6548870439.

The spelling of 25582380 in words is "twenty-five million, five hundred eighty-two thousand, three hundred eighty".