5555153978 has 64 divisors (see below), whose sum is σ = 9537139584. Its totient is φ = 2404896000.

The previous prime is 5555153977. The next prime is 5555153987. The reversal of 5555153978 is 8793515555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (5555153977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5902988 + ... + 5903928.

It is an arithmetic number, because the mean of its divisors is an integer number (149017806).

Almost surely, 2^5555153978 is an apocalyptic number.

5555153978 is a deficient number, since it is larger than the sum of its proper divisors (3981985606).

5555153978 is a wasteful number, since it uses less digits than its factorization.

5555153978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151.

The product of its digits is 4725000, while the sum is 53.

The square root of 5555153978 is about 74532.9053371731. The cubic root of 5555153978 is about 1771.0549402930.

The spelling of 5555153978 in words is "five billion, five hundred fifty-five million, one hundred fifty-three thousand, nine hundred seventy-eight".