5261261511 has 8 divisors (see below), whose sum is σ = 7652744064. Its totient is φ = 3188643320.

The previous prime is 5261261501. The next prime is 5261261531. The reversal of 5261261511 is 1151621625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5261261511 - 2¹⁴ = 5261245127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261261501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79716051 + ... + 79716116.

It is an arithmetic number, because the mean of its divisors is an integer number (956593008).

Almost surely, 2^5261261511 is an apocalyptic number.

5261261511 is a deficient number, since it is larger than the sum of its proper divisors (2391482553).

5261261511 is a wasteful number, since it uses less digits than its factorization.

5261261511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159432181.

The product of its digits is 3600, while the sum is 30.

The square root of 5261261511 is about 72534.5539105329. The cubic root of 5261261511 is about 1739.2551432705.

The spelling of 5261261511 in words is "five billion, two hundred sixty-one million, two hundred sixty-one thousand, five hundred eleven".