55311523 has 8 divisors (see below), whose sum is σ = 58708800. Its totient is φ = 51930240.

The previous prime is 55311517. The next prime is 55311541. The reversal of 55311523 is 32511355.

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

It is not a de Polignac number, because 55311523 - 2⁵ = 55311491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55311593) 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, 3553 + ... + 11101.

It is an arithmetic number, because the mean of its divisors is an integer number (7338600).

Almost surely, 2^55311523 is an apocalyptic number.

55311523 is a deficient number, since it is larger than the sum of its proper divisors (3397277).

55311523 is a wasteful number, since it uses less digits than its factorization.

55311523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997.

The product of its digits is 2250, while the sum is 25.

The square root of 55311523 is about 7437.1717070403. The cubic root of 55311523 is about 381.0118990596.

Adding to 55311523 its reverse (32511355), we get a palindrome (87822878).

The spelling of 55311523 in words is "fifty-five million, three hundred eleven thousand, five hundred twenty-three".