5202779945 has 16 divisors (see below), whose sum is σ = 7045773120. Its totient is φ = 3653361600.

The previous prime is 5202779921. The next prime is 5202779951. The reversal of 5202779945 is 5499772025.

It is not a de Polignac number, because 5202779945 - 2⁸ = 5202779689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5202779893 and 5202779902.

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, 1629371 + ... + 1632560.

It is an arithmetic number, because the mean of its divisors is an integer number (440360820).

Almost surely, 2^5202779945 is an apocalyptic number.

5202779945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5202779945 is a deficient number, since it is larger than the sum of its proper divisors (1842993175).

5202779945 is a wasteful number, since it uses less digits than its factorization.

5202779945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261976.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 5202779945 is about 72130.2983842435. The cubic root of 5202779945 is about 1732.7868860754.

The spelling of 5202779945 in words is "five billion, two hundred two million, seven hundred seventy-nine thousand, nine hundred forty-five".