2150007561 has 48 divisors (see below), whose sum is σ = 3552232320. Its totient is φ = 1241372160.

The previous prime is 2150007551. The next prime is 2150007571. The reversal of 2150007561 is 1657000512.

It is an interprime number because it is at equal distance from previous prime (2150007551) and next prime (2150007571).

It is not a de Polignac number, because 2150007561 - 2⁹ = 2150007049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2150007551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 712546 + ... + 715556.

It is an arithmetic number, because the mean of its divisors is an integer number (74004840).

Almost surely, 2^2150007561 is an apocalyptic number.

It is an amenable number.

2150007561 is a deficient number, since it is larger than the sum of its proper divisors (1402224759).

2150007561 is a wasteful number, since it uses less digits than its factorization.

2150007561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 3403 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 2150007561 is about 46368.1740097667. The cubic root of 2150007561 is about 1290.6643936493.

The spelling of 2150007561 in words is "two billion, one hundred fifty million, seven thousand, five hundred sixty-one".