56720103 has 8 divisors (see below), whose sum is σ = 82502016. Its totient is φ = 34375800.

The previous prime is 56720101. The next prime is 56720107. The reversal of 56720103 is 30102765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56720103 - 2¹ = 56720101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56720101) 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, 859363 + ... + 859428.

It is an arithmetic number, because the mean of its divisors is an integer number (10312752).

Almost surely, 2^56720103 is an apocalyptic number.

56720103 is a deficient number, since it is larger than the sum of its proper divisors (25781913).

56720103 is a wasteful number, since it uses less digits than its factorization.

56720103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718805.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 56720103 is about 7531.2749916598. The cubic root of 56720103 is about 384.2191470996.

Adding to 56720103 its reverse (30102765), we get a palindrome (86822868).

The spelling of 56720103 in words is "fifty-six million, seven hundred twenty thousand, one hundred three".