15515305652 has 24 divisors (see below), whose sum is σ = 33851576640. Its totient is φ = 6044924160.

The previous prime is 15515305651. The next prime is 15515305657. The reversal of 15515305652 is 25650351551.

It is a happy number.

15515305652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15515305651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25186877 + ... + 25187492.

It is an arithmetic number, because the mean of its divisors is an integer number (1410482360).

Almost surely, 2^15515305652 is an apocalyptic number.

It is an amenable number.

15515305652 is an abundant number, since it is smaller than the sum of its proper divisors (18336270988).

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

15515305652 is a wasteful number, since it uses less digits than its factorization.

15515305652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50374391 (or 50374389 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 15515305652 in words is "fifteen billion, five hundred fifteen million, three hundred five thousand, six hundred fifty-two".