2615036261 has 2 divisors, whose sum is σ = 2615036262. Its totient is φ = 2615036260.

The previous prime is 2615036257. The next prime is 2615036269. The reversal of 2615036261 is 1626305162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2314187236 + 300849025 = 48106^2 + 17345^2 .

It is a cyclic number.

It is not a de Polignac number, because 2615036261 - 2² = 2615036257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2615036269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307518130 + 1307518131.

It is an arithmetic number, because the mean of its divisors is an integer number (1307518131).

Almost surely, 2^2615036261 is an apocalyptic number.

It is an amenable number.

2615036261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615036261 is an equidigital number, since it uses as much as digits as its factorization.

2615036261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2615036261 is about 51137.4252480510. The cubic root of 2615036261 is about 1377.7145291882.

The spelling of 2615036261 in words is "two billion, six hundred fifteen million, thirty-six thousand, two hundred sixty-one".