2536305261 has 16 divisors (see below), whose sum is σ = 3867106944. Its totient is φ = 1448469504.

The previous prime is 2536305257. The next prime is 2536305329. The reversal of 2536305261 is 1625036352.

It is not a de Polignac number, because 2536305261 - 2² = 2536305257 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2536305221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365 + ... + 71261.

It is an arithmetic number, because the mean of its divisors is an integer number (241694184).

Almost surely, 2^2536305261 is an apocalyptic number.

2536305261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2536305261 is a deficient number, since it is larger than the sum of its proper divisors (1330801683).

2536305261 is a wasteful number, since it uses less digits than its factorization.

2536305261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70660.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 2536305261 is about 50361.7440226210. The cubic root of 2536305261 is about 1363.7471024400.

The spelling of 2536305261 in words is "two billion, five hundred thirty-six million, three hundred five thousand, two hundred sixty-one".