15983253 has 36 divisors (see below), whose sum is σ = 27352780. Its totient is φ = 8933760.

The previous prime is 15983251. The next prime is 15983257. The reversal of 15983253 is 35238951.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 14152644 = 1353^2 + 3762^2 .

It is not a de Polignac number, because 15983253 - 2¹ = 15983251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15983251) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13593 + ... + 14721.

Almost surely, 2^15983253 is an apocalyptic number.

15983253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15983253 is a deficient number, since it is larger than the sum of its proper divisors (11369527).

15983253 is a wasteful number, since it uses less digits than its factorization.

15983253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1156 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 15983253 is about 3997.9060769358. The cubic root of 15983253 is about 251.8962630466.

It can be divided in two parts, 1598 and 3253, that added together give a triangular number (4851 = T₉₈).

The spelling of 15983253 in words is "fifteen million, nine hundred eighty-three thousand, two hundred fifty-three".