25000055005530 has 32 divisors (see below), whose sum is σ = 65454689469888. Its totient is φ = 6060619395200.

The previous prime is 25000055005477. The next prime is 25000055005543. The reversal of 25000055005530 is 3550055000052.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 37878870891 + ... + 37878871550.

It is an arithmetic number, because the mean of its divisors is an integer number (2045459045934).

Almost surely, 2^{25000055005530} is an apocalyptic number.

25000055005530 is an abundant number, since it is smaller than the sum of its proper divisors (40454634464358).

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

25000055005530 is a wasteful number, since it uses less digits than its factorization.

25000055005530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75757742462.

The product of its (nonzero) digits is 18750, while the sum is 30.

The spelling of 25000055005530 in words is "twenty-five trillion, fifty-five million, five thousand, five hundred thirty".