15045313522 has 4 divisors (see below), whose sum is σ = 22567970286. Its totient is φ = 7522656760.

The previous prime is 15045313501. The next prime is 15045313561. The reversal of 15045313522 is 22531354051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22531354051 = 83 ⋅271462097.

It can be written as a sum of positive squares in only one way, i.e., 15040814881 + 4498641 = 122641^2 + 2121^2 .

It is a super-2 number, since 2×15045313522² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3761328379 + ... + 3761328382.

Almost surely, 2^15045313522 is an apocalyptic number.

15045313522 is a deficient number, since it is larger than the sum of its proper divisors (7522656764).

15045313522 is an equidigital number, since it uses as much as digits as its factorization.

15045313522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522656763.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 15045313522 its reverse (22531354051), we get a palindrome (37576667573).

The spelling of 15045313522 in words is "fifteen billion, forty-five million, three hundred thirteen thousand, five hundred twenty-two".