2536280261 has 4 divisors (see below), whose sum is σ = 2536433952. Its totient is φ = 2536126572.

The previous prime is 2536280249. The next prime is 2536280287. The reversal of 2536280261 is 1620826352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2536280261 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 (2536280161) 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, 48641 + ... + 86246.

It is an arithmetic number, because the mean of its divisors is an integer number (634108488).

Almost surely, 2^2536280261 is an apocalyptic number.

It is an amenable number.

2536280261 is a deficient number, since it is larger than the sum of its proper divisors (153691).

2536280261 is a wasteful number, since it uses less digits than its factorization.

2536280261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153690.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2536280261 is about 50361.4958177376. The cubic root of 2536280261 is about 1363.7426216715.

The spelling of 2536280261 in words is "two billion, five hundred thirty-six million, two hundred eighty thousand, two hundred sixty-one".