25051560 has 64 divisors (see below), whose sum is σ = 75617280. Its totient is φ = 6639360.

The previous prime is 25051547. The next prime is 25051561. The reversal of 25051560 is 6515052.

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 25051560.

It is not an unprimeable number, because it can be changed into a prime (25051561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22374 + ... + 23466.

It is an arithmetic number, because the mean of its divisors is an integer number (1181520).

Almost surely, 2^25051560 is an apocalyptic number.

25051560 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 25051560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37808640).

25051560 is an abundant number, since it is smaller than the sum of its proper divisors (50565720).

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

25051560 is a wasteful number, since it uses less digits than its factorization.

25051560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 25051560 is about 5005.1533443042. The cubic root of 25051560 is about 292.6026522601.

The spelling of 25051560 in words is "twenty-five million, fifty-one thousand, five hundred sixty".