55629612945 has 20 divisors (see below), whose sum is σ = 99721232820. Its totient is φ = 29669126688.

The previous prime is 55629612923. The next prime is 55629612949. The reversal of 55629612945 is 54921692655.

55629612945 is a `hidden beast` number, since 5 + 5 + 629 + 6 + 1 + 2 + 9 + 4 + 5 = 666.

55629612945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13389498369 + 42240114576 = 115713^2 + 205524^2 .

It is not a de Polignac number, because 55629612945 - 2⁶ = 55629612881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55629612891 and 55629612900.

It is not an unprimeable number, because it can be changed into a prime (55629612949) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68678130 + ... + 68678939.

It is an arithmetic number, because the mean of its divisors is an integer number (4986061641).

Almost surely, 2^55629612945 is an apocalyptic number.

It is an amenable number.

55629612945 is a deficient number, since it is larger than the sum of its proper divisors (44091619875).

55629612945 is a wasteful number, since it uses less digits than its factorization.

55629612945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137357086 (or 137357077 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The spelling of 55629612945 in words is "fifty-five billion, six hundred twenty-nine million, six hundred twelve thousand, nine hundred forty-five".