55150544563 has 4 divisors (see below), whose sum is σ = 55151905480. Its totient is φ = 55149183648.

The previous prime is 55150544539. The next prime is 55150544569. The reversal of 55150544563 is 36544505155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55150544563 - 2⁹ = 55150544051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55150544569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617745 + ... + 701362.

It is an arithmetic number, because the mean of its divisors is an integer number (13787976370).

Almost surely, 2^55150544563 is an apocalyptic number.

55150544563 is a deficient number, since it is larger than the sum of its proper divisors (1360917).

55150544563 is a wasteful number, since it uses less digits than its factorization.

55150544563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360916.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 55150544563 in words is "fifty-five billion, one hundred fifty million, five hundred forty-four thousand, five hundred sixty-three".