25001550240 has 48 divisors (see below), whose sum is σ = 78754884768. Its totient is φ = 6667079936.

The previous prime is 25001550227. The next prime is 25001550263. The reversal of 25001550240 is 4205510052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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 25001550240.

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, 26042802 + ... + 26043761.

It is an arithmetic number, because the mean of its divisors is an integer number (1640726766).

Almost surely, 2^25001550240 is an apocalyptic number.

25001550240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25001550240 is an abundant number, since it is smaller than the sum of its proper divisors (53753334528).

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

25001550240 is a wasteful number, since it uses less digits than its factorization.

25001550240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52086581 (or 52086573 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The spelling of 25001550240 in words is "twenty-five billion, one million, five hundred fifty thousand, two hundred forty".