56278503 has 8 divisors (see below), whose sum is σ = 83375600. Its totient is φ = 37518984.

The previous prime is 56278487. The next prime is 56278543. The reversal of 56278503 is 30587265.

It is not a de Polignac number, because 56278503 - 2⁴ = 56278487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56278543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042168 + ... + 1042221.

It is an arithmetic number, because the mean of its divisors is an integer number (10421950).

Almost surely, 2^56278503 is an apocalyptic number.

56278503 is a deficient number, since it is larger than the sum of its proper divisors (27097097).

56278503 is a wasteful number, since it uses less digits than its factorization.

56278503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084398 (or 2084392 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 56278503 is about 7501.8999593436. The cubic root of 56278503 is about 383.2194226546.

The spelling of 56278503 in words is "fifty-six million, two hundred seventy-eight thousand, five hundred three".