15532541506 has 8 divisors (see below), whose sum is σ = 24050386944. Its totient is φ = 7515745860.

The previous prime is 15532541501. The next prime is 15532541509. The reversal of 15532541506 is 60514523551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×15532541506² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15532541501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125262370 + ... + 125262493.

It is an arithmetic number, because the mean of its divisors is an integer number (3006298368).

Almost surely, 2^15532541506 is an apocalyptic number.

15532541506 is a deficient number, since it is larger than the sum of its proper divisors (8517845438).

15532541506 is a wasteful number, since it uses less digits than its factorization.

15532541506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250524896.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 15532541506 in words is "fifteen billion, five hundred thirty-two million, five hundred forty-one thousand, five hundred six".