2961521633 has 6 divisors (see below), whose sum is σ = 3445035426. Its totient is φ = 2538447072.

The previous prime is 2961521627. The next prime is 2961521639. The reversal of 2961521633 is 3361251692.

It is an interprime number because it is at equal distance from previous prime (2961521627) and next prime (2961521639).

It can be written as a sum of positive squares in only one way, i.e., 2579827264 + 381694369 = 50792^2 + 19537^2 .

It is not a de Polignac number, because 2961521633 - 2¹⁰ = 2961520609 is a prime.

It is a super-2 number, since 2×2961521633² = 17541220765453973378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2961521639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30219560 + ... + 30219657.

It is an arithmetic number, because the mean of its divisors is an integer number (574172571).

Almost surely, 2^2961521633 is an apocalyptic number.

It is an amenable number.

2961521633 is a deficient number, since it is larger than the sum of its proper divisors (483513793).

2961521633 is an equidigital number, since it uses as much as digits as its factorization.

2961521633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60439231 (or 60439224 counting only the distinct ones).

The product of its digits is 58320, while the sum is 38.

The square root of 2961521633 is about 54419.8643236089. The cubic root of 2961521633 is about 1436.0568617353.

The spelling of 2961521633 in words is "two billion, nine hundred sixty-one million, five hundred twenty-one thousand, six hundred thirty-three".