25055527550 has 24 divisors (see below), whose sum is σ = 46669827672. Its totient is φ = 10007900000.

The previous prime is 25055527529. The next prime is 25055527591. The reversal of 25055527550 is 5572555052.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25055527498 and 25055527507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322376 + ... + 392475.

It is an arithmetic number, because the mean of its divisors is an integer number (1944576153).

Almost surely, 2^25055527550 is an apocalyptic number.

25055527550 is a deficient number, since it is larger than the sum of its proper divisors (21614300122).

25055527550 is a wasteful number, since it uses less digits than its factorization.

25055527550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715564 (or 715559 counting only the distinct ones).

The product of its (nonzero) digits is 437500, while the sum is 41.

The spelling of 25055527550 in words is "twenty-five billion, fifty-five million, five hundred twenty-seven thousand, five hundred fifty".