15540451052 has 48 divisors (see below), whose sum is σ = 31438870848. Its totient is φ = 6583699200.

The previous prime is 15540451039. The next prime is 15540451079. The reversal of 15540451052 is 25015404551.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1910498 + ... + 1918614.

It is an arithmetic number, because the mean of its divisors is an integer number (654976476).

Almost surely, 2^15540451052 is an apocalyptic number.

It is an amenable number.

15540451052 is an abundant number, since it is smaller than the sum of its proper divisors (15898419796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15540451052 is a wasteful number, since it uses less digits than its factorization.

15540451052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8906 (or 8904 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 15540451052 in words is "fifteen billion, five hundred forty million, four hundred fifty-one thousand, fifty-two".