55031523 has 8 divisors (see below), whose sum is σ = 73440528. Its totient is φ = 36655104.

The previous prime is 55031521. The next prime is 55031527. The reversal of 55031523 is 32513055.

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

It is not a de Polignac number, because 55031523 - 2¹ = 55031521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55031493 and 55031502.

It is not an unprimeable number, because it can be changed into a prime (55031521) 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, 3886 + ... + 11187.

It is an arithmetic number, because the mean of its divisors is an integer number (9180066).

Almost surely, 2^55031523 is an apocalyptic number.

55031523 is a deficient number, since it is larger than the sum of its proper divisors (18409005).

55031523 is a wasteful number, since it uses less digits than its factorization.

55031523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16293.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55031523 is about 7418.3234628857. The cubic root of 55031523 is about 380.3678870305.

Adding to 55031523 its reverse (32513055), we get a palindrome (87544578).

The spelling of 55031523 in words is "fifty-five million, thirty-one thousand, five hundred twenty-three".