5266061261 has 8 divisors (see below), whose sum is σ = 5546029920. Its totient is φ = 4986373392.

The previous prime is 5266061221. The next prime is 5266061293. The reversal of 5266061261 is 1621606625.

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 5266061261 - 2¹⁰ = 5266060237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5266061221) 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, 31130 + ... + 107243.

It is an arithmetic number, because the mean of its divisors is an integer number (693253740).

Almost surely, 2^5266061261 is an apocalyptic number.

It is an amenable number.

5266061261 is a deficient number, since it is larger than the sum of its proper divisors (279968659).

5266061261 is a wasteful number, since it uses less digits than its factorization.

5266061261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140395.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 5266061261 is about 72567.6323232335. The cubic root of 5266061261 is about 1739.7838791114.

Adding to 5266061261 its reverse (1621606625), we get a palindrome (6887667886).

The spelling of 5266061261 in words is "five billion, two hundred sixty-six million, sixty-one thousand, two hundred sixty-one".