25265800 has 48 divisors (see below), whose sum is σ = 67138560. Its totient is φ = 8662080.

The previous prime is 25265771. The next prime is 25265809. The reversal of 25265800 is 856252.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (25265809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7624 + ... + 10423.

It is an arithmetic number, because the mean of its divisors is an integer number (1398720).

Almost surely, 2^25265800 is an apocalyptic number.

25265800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25265800 is an abundant number, since it is smaller than the sum of its proper divisors (41872760).

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

25265800 is a wasteful number, since it uses less digits than its factorization.

25265800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18070 (or 18061 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25265800 is about 5026.5097234562. The cubic root of 25265800 is about 293.4343947001.

The spelling of 25265800 in words is "twenty-five million, two hundred sixty-five thousand, eight hundred".