56645003 has 4 divisors (see below), whose sum is σ = 59977080. Its totient is φ = 53312928.

The previous prime is 56644963. The next prime is 56645009. The reversal of 56645003 is 30054665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30054665 = 5 ⋅6010933.

It is a cyclic number.

It is not a de Polignac number, because 56645003 - 2¹² = 56640907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56645009) 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, 1666013 + ... + 1666046.

It is an arithmetic number, because the mean of its divisors is an integer number (14994270).

Almost surely, 2^56645003 is an apocalyptic number.

56645003 is a deficient number, since it is larger than the sum of its proper divisors (3332077).

56645003 is a wasteful number, since it uses less digits than its factorization.

56645003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332076.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 56645003 is about 7526.2874646136. The cubic root of 56645003 is about 384.0494976523.

Adding to 56645003 its reverse (30054665), we get a palindrome (86699668).

The spelling of 56645003 in words is "fifty-six million, six hundred forty-five thousand, three".