55275780825 has 36 divisors (see below), whose sum is σ = 101307526320. Its totient is φ = 28794820320.

The previous prime is 55275780811. The next prime is 55275780827. The reversal of 55275780825 is 52808757255.

55275780825 is a `hidden beast` number, since 552 + 7 + 5 + 7 + 8 + 0 + 82 + 5 = 666.

It is not a de Polignac number, because 55275780825 - 2²⁷ = 55141563097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55275780827) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2846955 + ... + 2866304.

Almost surely, 2^55275780825 is an apocalyptic number.

It is an amenable number.

55275780825 is a deficient number, since it is larger than the sum of its proper divisors (46031745495).

55275780825 is a wasteful number, since it uses less digits than its factorization.

55275780825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713318 (or 5713310 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 54.

The spelling of 55275780825 in words is "fifty-five billion, two hundred seventy-five million, seven hundred eighty thousand, eight hundred twenty-five".