15056457061 has 2 divisors, whose sum is σ = 15056457062. Its totient is φ = 15056457060.

The previous prime is 15056457049. The next prime is 15056457089. The reversal of 15056457061 is 16075465051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15044249025 + 12208036 = 122655^2 + 3494^2 .

It is a cyclic number.

It is not a de Polignac number, because 15056457061 - 2⁹ = 15056456549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15056457001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7528228530 + 7528228531.

It is an arithmetic number, because the mean of its divisors is an integer number (7528228531).

Almost surely, 2^15056457061 is an apocalyptic number.

It is an amenable number.

15056457061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15056457061 is an equidigital number, since it uses as much as digits as its factorization.

15056457061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 15056457061 in words is "fifteen billion, fifty-six million, four hundred fifty-seven thousand, sixty-one".