15532200045 has 24 divisors (see below), whose sum is σ = 27850843800. Its totient is φ = 7998189696.

The previous prime is 15532200037. The next prime is 15532200071. The reversal of 15532200045 is 54000223551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 467337924 + 15064862121 = 21618^2 + 122739^2 .

It is not a de Polignac number, because 15532200045 - 2³ = 15532200037 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15532199991 and 15532200018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5949730 + ... + 5952339.

It is an arithmetic number, because the mean of its divisors is an integer number (1160451825).

Almost surely, 2^15532200045 is an apocalyptic number.

15532200045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15532200045 is a deficient number, since it is larger than the sum of its proper divisors (12318643755).

15532200045 is a wasteful number, since it uses less digits than its factorization.

15532200045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11902109 (or 11902106 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 15532200045 its reverse (54000223551), we get a palindrome (69532423596).

The spelling of 15532200045 in words is "fifteen billion, five hundred thirty-two million, two hundred thousand, forty-five".