56353511 has 4 divisors (see below), whose sum is σ = 56535024. Its totient is φ = 56172000.

The previous prime is 56353489. The next prime is 56353529. The reversal of 56353511 is 11535365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11535365 = 5 ⋅2307073.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56353511 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 (56353111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90290 + ... + 90911.

It is an arithmetic number, because the mean of its divisors is an integer number (14133756).

Almost surely, 2^56353511 is an apocalyptic number.

56353511 is a deficient number, since it is larger than the sum of its proper divisors (181513).

56353511 is a wasteful number, since it uses less digits than its factorization.

56353511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181512.

The product of its digits is 6750, while the sum is 29.

The square root of 56353511 is about 7506.8975615763. The cubic root of 56353511 is about 383.3895987143.

Adding to 56353511 its reverse (11535365), we get a palindrome (67888876).

The spelling of 56353511 in words is "fifty-six million, three hundred fifty-three thousand, five hundred eleven".