25725620 has 24 divisors (see below), whose sum is σ = 56868000. Its totient is φ = 9748512.

The previous prime is 25725611. The next prime is 25725647. The reversal of 25725620 is 2652752.

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, 33470 + ... + 34229.

It is an arithmetic number, because the mean of its divisors is an integer number (2369500).

Almost surely, 2^25725620 is an apocalyptic number.

25725620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25725620 is an abundant number, since it is smaller than the sum of its proper divisors (31142380).

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

25725620 is a wasteful number, since it uses less digits than its factorization.

25725620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67727 (or 67725 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 25725620 is about 5072.0429808904. The cubic root of 25725620 is about 295.2038043933.

It can be divided in two parts, 2572 and 5620, that added together give a 13-th power (8192 = 2¹³).

The spelling of 25725620 in words is "twenty-five million, seven hundred twenty-five thousand, six hundred twenty".