25052780 has 12 divisors (see below), whose sum is σ = 52610880. Its totient is φ = 10021104.

The previous prime is 25052749. The next prime is 25052801. The reversal of 25052780 is 8725052.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626300 + ... + 626339.

It is an arithmetic number, because the mean of its divisors is an integer number (4384240).

Almost surely, 2^25052780 is an apocalyptic number.

25052780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25052780 is an abundant number, since it is smaller than the sum of its proper divisors (27558100).

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

25052780 is a wasteful number, since it uses less digits than its factorization.

25052780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252648 (or 1252646 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 25052780 is about 5005.2752172083. The cubic root of 25052780 is about 292.6074020566.

The spelling of 25052780 in words is "twenty-five million, fifty-two thousand, seven hundred eighty".