5215345546 has 4 divisors (see below), whose sum is σ = 7823018322. Its totient is φ = 2607672772.

The previous prime is 5215345523. The next prime is 5215345559. The reversal of 5215345546 is 6455435125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3854547225 + 1360798321 = 62085^2 + 36889^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5215345499 and 5215345508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303836385 + ... + 1303836388.

Almost surely, 2^5215345546 is an apocalyptic number.

5215345546 is a deficient number, since it is larger than the sum of its proper divisors (2607672776).

5215345546 is a wasteful number, since it uses less digits than its factorization.

5215345546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607672775.

The product of its digits is 360000, while the sum is 40.

The square root of 5215345546 is about 72217.3493421075. The cubic root of 5215345546 is about 1734.1807564952.

The spelling of 5215345546 in words is "five billion, two hundred fifteen million, three hundred forty-five thousand, five hundred forty-six".