15252252 has 24 divisors (see below), whose sum is σ = 36347136. Its totient is φ = 4975728.

The previous prime is 15252241. The next prime is 15252253. The reversal of 15252252 is 25225251.

Added to its reverse (25225251) it gives a triangular number (40477503 = T₈₉₉₇).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15252253) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12958 + ... + 14085.

It is an arithmetic number, because the mean of its divisors is an integer number (1514464).

Almost surely, 2^15252252 is an apocalyptic number.

15252252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15252252 is an abundant number, since it is smaller than the sum of its proper divisors (21094884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15252252 is a wasteful number, since it uses less digits than its factorization.

15252252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27097 (or 27095 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 15252252 is about 3905.4131663628. The cubic root of 15252252 is about 247.9959893559.

Adding to 15252252 its reverse (25225251), we get a triangular number (40477503 = T₈₉₉₇).

The spelling of 15252252 in words is "fifteen million, two hundred fifty-two thousand, two hundred fifty-two".