5261306377 has 4 divisors (see below), whose sum is σ = 5277903876. Its totient is φ = 5244708880.

The previous prime is 5261306363. The next prime is 5261306381. The reversal of 5261306377 is 7736031625.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1599120121 + 3662186256 = 39989^2 + 60516^2 .

It is a cyclic number.

It is not a de Polignac number, because 5261306377 - 2⁷ = 5261306249 is a prime.

It is a super-2 number, since 2×5261306377² = 55362689585321732258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6261306377) 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, 8298274 + ... + 8298907.

It is an arithmetic number, because the mean of its divisors is an integer number (1319475969).

Almost surely, 2^5261306377 is an apocalyptic number.

It is an amenable number.

5261306377 is a deficient number, since it is larger than the sum of its proper divisors (16597499).

5261306377 is a wasteful number, since it uses less digits than its factorization.

5261306377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16597498.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 5261306377 is about 72534.8631831618. The cubic root of 5261306377 is about 1739.2600871544.

The spelling of 5261306377 in words is "five billion, two hundred sixty-one million, three hundred six thousand, three hundred seventy-seven".