55200045 has 16 divisors (see below), whose sum is σ = 89531712. Its totient is φ = 29036160.

The previous prime is 55200011. The next prime is 55200053. The reversal of 55200045 is 54000255.

It is not a de Polignac number, because 55200045 - 2⁹ = 55199533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55199994 and 55200030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24111 + ... + 26300.

It is an arithmetic number, because the mean of its divisors is an integer number (5595732).

Almost surely, 2^55200045 is an apocalyptic number.

It is an amenable number.

55200045 is a deficient number, since it is larger than the sum of its proper divisors (34331667).

55200045 is a wasteful number, since it uses less digits than its factorization.

55200045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50492.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 55200045 is about 7429.6732768003. The cubic root of 55200045 is about 380.7557558588.

The spelling of 55200045 in words is "fifty-five million, two hundred thousand, forty-five".