556054951 has 2 divisors, whose sum is σ = 556054952. Its totient is φ = 556054950.

The previous prime is 556054949. The next prime is 556054957. The reversal of 556054951 is 159450655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556054951 - 2¹ = 556054949 is a prime.

It is a super-2 number, since 2×556054951² = 618394217063224802, which contains 22 as substring.

Together with 556054949, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556054957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278027475 + 278027476.

It is an arithmetic number, because the mean of its divisors is an integer number (278027476).

Almost surely, 2^556054951 is an apocalyptic number.

556054951 is a deficient number, since it is larger than the sum of its proper divisors (1).

556054951 is an equidigital number, since it uses as much as digits as its factorization.

556054951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 556054951 is about 23580.8174370610. The cubic root of 556054951 is about 822.3169406878.

The spelling of 556054951 in words is "five hundred fifty-six million, fifty-four thousand, nine hundred fifty-one".