5165501779 has 4 divisors (see below), whose sum is σ = 5343622560. Its totient is φ = 4987381000.

The previous prime is 5165501767. The next prime is 5165501849. The reversal of 5165501779 is 9771055615.

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

It is a cyclic number.

It is not a de Polignac number, because 5165501779 - 2⁷ = 5165501651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5165501729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89060347 + ... + 89060404.

It is an arithmetic number, because the mean of its divisors is an integer number (1335905640).

Almost surely, 2^5165501779 is an apocalyptic number.

5165501779 is a deficient number, since it is larger than the sum of its proper divisors (178120781).

5165501779 is a wasteful number, since it uses less digits than its factorization.

5165501779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178120780.

The product of its (nonzero) digits is 330750, while the sum is 46.

The square root of 5165501779 is about 71871.4253302382. The cubic root of 5165501779 is about 1728.6384621803.

It can be divided in two parts, 5165 and 501779, that added together give a square (506944 = 712²).

The spelling of 5165501779 in words is "five billion, one hundred sixty-five million, five hundred one thousand, seven hundred seventy-nine".