15542043100 has 36 divisors (see below), whose sum is σ = 34188252784. Its totient is φ = 6131652480.

The previous prime is 15542043053. The next prime is 15542043133. The reversal of 15542043100 is 134024551.

It is a happy number.

15542043100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15542043100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1057224 + ... + 1071823.

Almost surely, 2^15542043100 is an apocalyptic number.

15542043100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15542043100 is an abundant number, since it is smaller than the sum of its proper divisors (18646209684).

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

15542043100 is a wasteful number, since it uses less digits than its factorization.

15542043100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129134 (or 2129127 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 15542043100 its reverse (134024551), we get a palindrome (15676067651).

The spelling of 15542043100 in words is "fifteen billion, five hundred forty-two million, forty-three thousand, one hundred".