15252542 has 8 divisors (see below), whose sum is σ = 23873616. Its totient is φ = 7294672.

The previous prime is 15252541. The next prime is 15252551. The reversal of 15252542 is 24525251.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15252541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165743 + ... + 165834.

It is an arithmetic number, because the mean of its divisors is an integer number (2984202).

Almost surely, 2^15252542 is an apocalyptic number.

15252542 is a deficient number, since it is larger than the sum of its proper divisors (8621074).

15252542 is a wasteful number, since it uses less digits than its factorization.

15252542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331602.

The product of its digits is 4000, while the sum is 26.

The square root of 15252542 is about 3905.4502941402. The cubic root of 15252542 is about 247.9975611103.

Adding to 15252542 its reverse (24525251), we get a palindrome (39777793).

The spelling of 15252542 in words is "fifteen million, two hundred fifty-two thousand, five hundred forty-two".