15535123532 has 24 divisors (see below), whose sum is σ = 29487764880. Its totient is φ = 7132336640.

The previous prime is 15535123531. The next prime is 15535123537. The reversal of 15535123532 is 23532153551.

It is a junction number, because it is equal to n+sod(n) for n = 15535123492 and 15535123501.

It is not an unprimeable number, because it can be changed into a prime (15535123531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2783282 + ... + 2788857.

It is an arithmetic number, because the mean of its divisors is an integer number (1228656870).

Almost surely, 2^15535123532 is an apocalyptic number.

It is an amenable number.

15535123532 is a deficient number, since it is larger than the sum of its proper divisors (13952641348).

15535123532 is a wasteful number, since it uses less digits than its factorization.

15535123532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572201 (or 5572199 counting only the distinct ones).

The product of its digits is 67500, while the sum is 35.

The spelling of 15535123532 in words is "fifteen billion, five hundred thirty-five million, one hundred twenty-three thousand, five hundred thirty-two".