55078187042 has 4 divisors (see below), whose sum is σ = 82617280566. Its totient is φ = 27539093520.

The previous prime is 55078187033. The next prime is 55078187057. The reversal of 55078187042 is 24078187055.

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

It can be written as a sum of positive squares in only one way, i.e., 30022146361 + 25056040681 = 173269^2 + 158291^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13769546759 + ... + 13769546762.

Almost surely, 2^55078187042 is an apocalyptic number.

55078187042 is a deficient number, since it is larger than the sum of its proper divisors (27539093524).

55078187042 is a wasteful number, since it uses less digits than its factorization.

55078187042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27539093523.

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 55078187042 in words is "fifty-five billion, seventy-eight million, one hundred eighty-seven thousand, forty-two".