56415503 has 16 divisors (see below), whose sum is σ = 63180000. Its totient is φ = 50061312.

The previous prime is 56415493. The next prime is 56415509. The reversal of 56415503 is 30551465.

It is a cyclic number.

It is not a de Polignac number, because 56415503 - 2¹⁶ = 56349967 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 (56415509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125423 + ... + 125871.

It is an arithmetic number, because the mean of its divisors is an integer number (3948750).

Almost surely, 2^56415503 is an apocalyptic number.

56415503 is a deficient number, since it is larger than the sum of its proper divisors (6764497).

56415503 is a wasteful number, since it uses less digits than its factorization.

56415503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 56415503 is about 7511.0254293272. The cubic root of 56415503 is about 383.5301304982.

Adding to 56415503 its reverse (30551465), we get a palindrome (86966968).

The spelling of 56415503 in words is "fifty-six million, four hundred fifteen thousand, five hundred three".