25435580 has 24 divisors (see below), whose sum is σ = 54719280. Its totient is φ = 9925760.

The previous prime is 25435573. The next prime is 25435589. The reversal of 25435580 is 8553452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25435589) 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, 14690 + ... + 16329.

It is an arithmetic number, because the mean of its divisors is an integer number (2279970).

Almost surely, 2^25435580 is an apocalyptic number.

25435580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25435580 is an abundant number, since it is smaller than the sum of its proper divisors (29283700).

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

25435580 is a wasteful number, since it uses less digits than its factorization.

25435580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31069 (or 31067 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 25435580 is about 5043.3699051329. The cubic root of 25435580 is about 294.0901970774.

The spelling of 25435580 in words is "twenty-five million, four hundred thirty-five thousand, five hundred eighty".