56278003 has 2 divisors, whose sum is σ = 56278004. Its totient is φ = 56278002.

The previous prime is 56277971. The next prime is 56278021. The reversal of 56278003 is 30087265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56278003 - 2⁵ = 56277971 is a prime.

It is a super-3 number, since 3×56278003³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (56278303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28139001 + 28139002.

It is an arithmetic number, because the mean of its divisors is an integer number (28139002).

Almost surely, 2^56278003 is an apocalyptic number.

56278003 is a deficient number, since it is larger than the sum of its proper divisors (1).

56278003 is an equidigital number, since it uses as much as digits as its factorization.

56278003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 56278003 is about 7501.8666343784. The cubic root of 56278003 is about 383.2182877613.

The spelling of 56278003 in words is "fifty-six million, two hundred seventy-eight thousand, three".