55866995045 has 48 divisors (see below), whose sum is σ = 71856287568. Its totient is φ = 41663784960.

The previous prime is 55866995017. The next prime is 55866995069. The reversal of 55866995045 is 54059966855.

55866995045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 236362²+1.

It can be written as a sum of positive squares in 24 ways, for example, as 7853858884 + 48013136161 = 88622^2 + 219119^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55866995045 is a prime.

It is a super-2 number, since 2×55866995045² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21313835 + ... + 21316455.

It is an arithmetic number, because the mean of its divisors is an integer number (1497005991).

Almost surely, 2^55866995045 is an apocalyptic number.

It is an amenable number.

55866995045 is a deficient number, since it is larger than the sum of its proper divisors (15989292523).

55866995045 is a wasteful number, since it uses less digits than its factorization.

55866995045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 58320000, while the sum is 62.

The spelling of 55866995045 in words is "fifty-five billion, eight hundred sixty-six million, nine hundred ninety-five thousand, forty-five".