55116523 has 24 divisors (see below), whose sum is σ = 70383600. Its totient is φ = 42678720.

The previous prime is 55116521. The next prime is 55116527. The reversal of 55116523 is 32561155.

It is not a de Polignac number, because 55116523 - 2¹ = 55116521 is a prime.

It is a super-2 number, since 2×55116523² = 6075662215219058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55116491 and 55116500.

It is not an unprimeable number, because it can be changed into a prime (55116521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157753 + ... + 158101.

It is an arithmetic number, because the mean of its divisors is an integer number (2932650).

Almost surely, 2^55116523 is an apocalyptic number.

55116523 is a deficient number, since it is larger than the sum of its proper divisors (15267077).

55116523 is a wasteful number, since it uses less digits than its factorization.

55116523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 660 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 55116523 is about 7424.0503096356. The cubic root of 55116523 is about 380.5636211416.

Adding to 55116523 its reverse (32561155), we get a palindrome (87677678).

The spelling of 55116523 in words is "fifty-five million, one hundred sixteen thousand, five hundred twenty-three".