5231994090 has 32 divisors (see below), whose sum is σ = 13217670720. Its totient is φ = 1321766784.

The previous prime is 5231994073. The next prime is 5231994113. The reversal of 5231994090 is 904991325.

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, 4588899 + ... + 4590038.

It is an arithmetic number, because the mean of its divisors is an integer number (413052210).

Almost surely, 2^5231994090 is an apocalyptic number.

5231994090 is an abundant number, since it is smaller than the sum of its proper divisors (7985676630).

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

5231994090 is a wasteful number, since it uses less digits than its factorization.

5231994090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9178966.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 5231994090 is about 72332.5244271206. The cubic root of 5231994090 is about 1736.0240934472.

The spelling of 5231994090 in words is "five billion, two hundred thirty-one million, nine hundred ninety-four thousand, ninety".