72296552258 has 54 divisors (see below), whose sum is σ = 127696835691. Its totient is φ = 30608925984.

The previous prime is 72296552233. The next prime is 72296552261. The reversal of 72296552258 is 85225569227.

It can be written as a sum of positive squares in 5 ways, for example, as 54534859729 + 17761692529 = 233527^2 + 133273^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=190127.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 417899060 + ... + 417899232.

Almost surely, 2^72296552258 is an apocalyptic number.

72296552258 is a deficient number, since it is larger than the sum of its proper divisors (55400283433).

72296552258 is an equidigital number, since it uses as much as digits as its factorization.

72296552258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 339 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 53.

The spelling of 72296552258 in words is "seventy-two billion, two hundred ninety-six million, five hundred fifty-two thousand, two hundred fifty-eight".