15542255432 has 36 divisors (see below), whose sum is σ = 32039813715. Its totient is φ = 7062898480.

The previous prime is 15542255429. The next prime is 15542255461. The reversal of 15542255432 is 23455224551.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 7771127716 + 7771127716 = 88154^2 + 88154^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=88154.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3876773 + ... + 3880779.

Almost surely, 2^15542255432 is an apocalyptic number.

It is an amenable number.

15542255432 is an abundant number, since it is smaller than the sum of its proper divisors (16497558283).

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

15542255432 is an frugal number, since it uses more digits than its factorization.

15542255432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042 (or 4020 counting only the distinct ones).

The product of its digits is 240000, while the sum is 38.

Adding to 15542255432 its reverse (23455224551), we get a palindrome (38997479983).

The spelling of 15542255432 in words is "fifteen billion, five hundred forty-two million, two hundred fifty-five thousand, four hundred thirty-two".