25055604530 has 128 divisors (see below), whose sum is σ = 54524067840. Its totient is φ = 8177495040.

The previous prime is 25055604493. The next prime is 25055604557. The reversal of 25055604530 is 3540655052.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18880727 + ... + 18882053.

It is an arithmetic number, because the mean of its divisors is an integer number (425969280).

Almost surely, 2^25055604530 is an apocalyptic number.

25055604530 is an abundant number, since it is smaller than the sum of its proper divisors (29468463310).

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

25055604530 is a wasteful number, since it uses less digits than its factorization.

25055604530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 25055604530 in words is "twenty-five billion, fifty-five million, six hundred four thousand, five hundred thirty".