25150005240 has 64 divisors (see below), whose sum is σ = 78051751200. Its totient is φ = 6475402752.

The previous prime is 25150005217. The next prime is 25150005299. The reversal of 25150005240 is 4250005152.

It is a happy number.

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 25150005240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3610027 + ... + 3616986.

Almost surely, 2^25150005240 is an apocalyptic number.

25150005240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25150005240 is an abundant number, since it is smaller than the sum of its proper divisors (52901745960).

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

25150005240 is a wasteful number, since it uses less digits than its factorization.

25150005240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7227056 (or 7227052 counting only the distinct ones).

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

The spelling of 25150005240 in words is "twenty-five billion, one hundred fifty million, five thousand, two hundred forty".