55025252505 has 40 divisors (see below), whose sum is σ = 100931795712. Its totient is φ = 28664308512.

The previous prime is 55025252501. The next prime is 55025252507. The reversal of 55025252505 is 50525252055.

55025252505 is a `hidden beast` number, since 5 + 50 + 2 + 52 + 52 + 505 = 666.

It is not a de Polignac number, because 55025252505 - 2² = 55025252501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55025252505.

It is not an unprimeable number, because it can be changed into a prime (55025252501) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 1562409 + ... + 1597238.

Almost surely, 2^55025252505 is an apocalyptic number.

It is an amenable number.

55025252505 is a deficient number, since it is larger than the sum of its proper divisors (45906543207).

55025252505 is a wasteful number, since it uses less digits than its factorization.

55025252505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159707 (or 3159698 counting only the distinct ones).

The product of its (nonzero) digits is 125000, while the sum is 36.

The spelling of 55025252505 in words is "fifty-five billion, twenty-five million, two hundred fifty-two thousand, five hundred five".