56890403 has 4 divisors (see below), whose sum is σ = 57477000. Its totient is φ = 56303808.

The previous prime is 56890399. The next prime is 56890459. The reversal of 56890403 is 30409865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56890403 - 2² = 56890399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56890103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293153 + ... + 293346.

It is an arithmetic number, because the mean of its divisors is an integer number (14369250).

Almost surely, 2^56890403 is an apocalyptic number.

56890403 is a deficient number, since it is larger than the sum of its proper divisors (586597).

56890403 is an equidigital number, since it uses as much as digits as its factorization.

56890403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586596.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 56890403 is about 7542.5727043231. The cubic root of 56890403 is about 384.6032974571.

The spelling of 56890403 in words is "fifty-six million, eight hundred ninety thousand, four hundred three".