25300780 has 48 divisors (see below), whose sum is σ = 56448000. Its totient is φ = 9498816.

The previous prime is 25300703. The next prime is 25300823. The reversal of 25300780 is 8700352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52581 + ... + 53059.

It is an arithmetic number, because the mean of its divisors is an integer number (1176000).

Almost surely, 2^25300780 is an apocalyptic number.

25300780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25300780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28224000).

25300780 is an abundant number, since it is smaller than the sum of its proper divisors (31147220).

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

25300780 is a wasteful number, since it uses less digits than its factorization.

25300780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 25300780 is about 5029.9880715564. The cubic root of 25300780 is about 293.5697502907.

The spelling of 25300780 in words is "twenty-five million, three hundred thousand, seven hundred eighty".