15530254442 has 16 divisors (see below), whose sum is σ = 24444037440. Its totient is φ = 7386014592.

The previous prime is 15530254429. The next prime is 15530254451. The reversal of 15530254442 is 24445203551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934823 + ... + 951290.

It is an arithmetic number, because the mean of its divisors is an integer number (1527752340).

Almost surely, 2^15530254442 is an apocalyptic number.

15530254442 is a deficient number, since it is larger than the sum of its proper divisors (8913782998).

15530254442 is a wasteful number, since it uses less digits than its factorization.

15530254442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886317.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 15530254442 its reverse (24445203551), we get a palindrome (39975457993).

The spelling of 15530254442 in words is "fifteen billion, five hundred thirty million, two hundred fifty-four thousand, four hundred forty-two".