5591997430 has 16 divisors (see below), whose sum is σ = 10066518000. Its totient is φ = 2236593952.

The previous prime is 5591997427. The next prime is 5591997473. The reversal of 5591997430 is 347991955.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139737 + ... + 175243.

It is an arithmetic number, because the mean of its divisors is an integer number (629157375).

Almost surely, 2^5591997430 is an apocalyptic number.

5591997430 is a deficient number, since it is larger than the sum of its proper divisors (4474520570).

5591997430 is a wasteful number, since it uses less digits than its factorization.

5591997430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51263.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The square root of 5591997430 is about 74779.6591995444. The cubic root of 5591997430 is about 1774.9617057135.

The spelling of 5591997430 in words is "five billion, five hundred ninety-one million, nine hundred ninety-seven thousand, four hundred thirty".