15042424525321 has 8 divisors (see below), whose sum is σ = 15051633732360. Its totient is φ = 15033215728128.

The previous prime is 15042424525307. The next prime is 15042424525361. The reversal of 15042424525321 is 12352542424051.

It can be written as a sum of positive squares in 4 ways, for example, as 7095889043721 + 7946535481600 = 2663811^2 + 2818960^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 15042424525321 - 2²⁵ = 15042390970889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15042424525361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107501215 + ... + 107641051.

It is an arithmetic number, because the mean of its divisors is an integer number (1881454216545).

Almost surely, 2^{15042424525321} is an apocalyptic number.

It is an amenable number.

15042424525321 is a deficient number, since it is larger than the sum of its proper divisors (9209207039).

15042424525321 is a wasteful number, since it uses less digits than its factorization.

15042424525321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204923.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 15042424525321 its reverse (12352542424051), we get a palindrome (27394966949372).

The spelling of 15042424525321 in words is "fifteen trillion, forty-two billion, four hundred twenty-four million, five hundred twenty-five thousand, three hundred twenty-one".