556761461 has 2 divisors, whose sum is σ = 556761462. Its totient is φ = 556761460.

The previous prime is 556761419. The next prime is 556761487. The reversal of 556761461 is 164167655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281400625 + 275360836 = 16775^2 + 16594^2 .

It is a cyclic number.

It is not a de Polignac number, because 556761461 - 2¹⁰ = 556760437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556761761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278380730 + 278380731.

It is an arithmetic number, because the mean of its divisors is an integer number (278380731).

Almost surely, 2^556761461 is an apocalyptic number.

It is an amenable number.

556761461 is a deficient number, since it is larger than the sum of its proper divisors (1).

556761461 is an equidigital number, since it uses as much as digits as its factorization.

556761461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 556761461 is about 23595.7932903304. The cubic root of 556761461 is about 822.6650653090.

The spelling of 556761461 in words is "five hundred fifty-six million, seven hundred sixty-one thousand, four hundred sixty-one".