7512056561 has 4 divisors (see below), whose sum is σ = 7543488000. Its totient is φ = 7480625124.

The previous prime is 7512056551. The next prime is 7512056567. The reversal of 7512056561 is 1656502157.

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 not a de Polignac number, because 7512056561 - 2¹⁸ = 7511794417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7512056567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15715361 + ... + 15715838.

It is an arithmetic number, because the mean of its divisors is an integer number (1885872000).

Almost surely, 2^7512056561 is an apocalyptic number.

It is an amenable number.

7512056561 is a deficient number, since it is larger than the sum of its proper divisors (31431439).

7512056561 is a wasteful number, since it uses less digits than its factorization.

7512056561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31431438.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 7512056561 is about 86672.1210136224. The cubic root of 7512056561 is about 1958.4821443886.

The spelling of 7512056561 in words is "seven billion, five hundred twelve million, fifty-six thousand, five hundred sixty-one".