5531392878 has 32 divisors (see below), whose sum is σ = 12074624640. Its totient is φ = 1675328160.

The previous prime is 5531392877. The next prime is 5531392883. The reversal of 5531392878 is 8782931355.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5531392878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531392873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116301 + ... + 156807.

It is an arithmetic number, because the mean of its divisors is an integer number (377332020).

Almost surely, 2^5531392878 is an apocalyptic number.

5531392878 is an abundant number, since it is smaller than the sum of its proper divisors (6543231762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5531392878 is a wasteful number, since it uses less digits than its factorization.

5531392878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42592.

The product of its digits is 1814400, while the sum is 51.

The square root of 5531392878 is about 74373.3344553006. The cubic root of 5531392878 is about 1768.5262161442.

The spelling of 5531392878 in words is "five billion, five hundred thirty-one million, three hundred ninety-two thousand, eight hundred seventy-eight".