15528852040 has 128 divisors (see below), whose sum is σ = 39550291200. Its totient is φ = 5444398080.

The previous prime is 15528852023. The next prime is 15528852083. The reversal of 15528852040 is 4025882551.

It is a super-2 number, since 2×15528852040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 15528851984 and 15528852002.

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 31 ways as a sum of consecutive naturals, for example, 1657770 + ... + 1667110.

It is an arithmetic number, because the mean of its divisors is an integer number (308986650).

Almost surely, 2^15528852040 is an apocalyptic number.

15528852040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15528852040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19775145600).

15528852040 is an abundant number, since it is smaller than the sum of its proper divisors (24021439160).

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

15528852040 is a wasteful number, since it uses less digits than its factorization.

15528852040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9527 (or 9523 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 40.

The spelling of 15528852040 in words is "fifteen billion, five hundred twenty-eight million, eight hundred fifty-two thousand, forty".