23503055 has 16 divisors (see below), whose sum is σ = 29113344. Its totient is φ = 18204960.

The previous prime is 23503013. The next prime is 23503087. The reversal of 23503055 is 55030532.

23503055 = 230² + 231² + ... + 435².

It is a happy number.

It is not a de Polignac number, because 23503055 - 2¹⁸ = 23240911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23503055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23720 + ... + 24690.

It is an arithmetic number, because the mean of its divisors is an integer number (1819584).

Almost surely, 2^23503055 is an apocalyptic number.

23503055 is a deficient number, since it is larger than the sum of its proper divisors (5610289).

23503055 is a wasteful number, since it uses less digits than its factorization.

23503055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 23503055 is about 4847.9949463670. The cubic root of 23503055 is about 286.4451273457.

Adding to 23503055 its reverse (55030532), we get a palindrome (78533587).

The spelling of 23503055 in words is "twenty-three million, five hundred three thousand, fifty-five".