25204560 has 40 divisors (see below), whose sum is σ = 78134880. Its totient is φ = 6721152.

The previous prime is 25204559. The next prime is 25204561. The reversal of 25204560 is 6540252.

It is an interprime number because it is at equal distance from previous prime (25204559) and next prime (25204561).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 25204560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25204561) 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, 52270 + ... + 52749.

It is an arithmetic number, because the mean of its divisors is an integer number (1953372).

Almost surely, 2^25204560 is an apocalyptic number.

25204560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25204560 is an abundant number, since it is smaller than the sum of its proper divisors (52930320).

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

25204560 is a wasteful number, since it uses less digits than its factorization.

25204560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105035 (or 105029 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25204560 is about 5020.4143255313. The cubic root of 25204560 is about 293.1971245485.

The spelling of 25204560 in words is "twenty-five million, two hundred four thousand, five hundred sixty".