25120503270 has 80 divisors (see below), whose sum is σ = 67844299248. Its totient is φ = 6669241920.

The previous prime is 25120503263. The next prime is 25120503281. The reversal of 25120503270 is 7230502152.

25120503270 is a `hidden beast` number, since 2 + 512 + 0 + 50 + 32 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 115560 + ... + 252180.

Almost surely, 2^25120503270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25120503270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33922149624).

25120503270 is an abundant number, since it is smaller than the sum of its proper divisors (42723795978).

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

25120503270 is a wasteful number, since it uses less digits than its factorization.

25120503270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136867 (or 136858 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The spelling of 25120503270 in words is "twenty-five billion, one hundred twenty million, five hundred three thousand, two hundred seventy".