25057780 has 24 divisors (see below), whose sum is σ = 57405600. Its totient is φ = 9111840.

The previous prime is 25057771. The next prime is 25057793. The reversal of 25057780 is 8775052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56730 + ... + 57169.

It is an arithmetic number, because the mean of its divisors is an integer number (2391900).

Almost surely, 2^25057780 is an apocalyptic number.

25057780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25057780 is an abundant number, since it is smaller than the sum of its proper divisors (32347820).

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

25057780 is a wasteful number, since it uses less digits than its factorization.

25057780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113919 (or 113917 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 25057780 is about 5005.7746653240. The cubic root of 25057780 is about 292.6268668251.

The spelling of 25057780 in words is "twenty-five million, fifty-seven thousand, seven hundred eighty".