15243055542 has 192 divisors, whose sum is σ = 41501678400. Its totient is φ = 3972096000.

The previous prime is 15243055453. The next prime is 15243055547. The reversal of 15243055542 is 24555034251.

15243055542 is a `hidden beast` number, since 1 + 524 + 30 + 55 + 54 + 2 = 666.

15243055542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15243055497 and 15243055506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15243055547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4417834 + ... + 4421282.

It is an arithmetic number, because the mean of its divisors is an integer number (216154575).

Almost surely, 2^15243055542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15243055542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20750839200).

15243055542 is an abundant number, since it is smaller than the sum of its proper divisors (26258622858).

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

15243055542 is a wasteful number, since it uses less digits than its factorization.

15243055542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 15243055542 its reverse (24555034251), we get a palindrome (39798089793).

The spelling of 15243055542 in words is "fifteen billion, two hundred forty-three million, fifty-five thousand, five hundred forty-two".