15155252020 has 12 divisors (see below), whose sum is σ = 31826029284. Its totient is φ = 6062100800.

The previous prime is 15155251999. The next prime is 15155252033. The reversal of 15155252020 is 2025255151.

15155252020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6864785316 + 8290466704 = 82854^2 + 91052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15155252020.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 378881281 + ... + 378881320.

It is an arithmetic number, because the mean of its divisors is an integer number (2652169107).

Almost surely, 2^15155252020 is an apocalyptic number.

15155252020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15155252020 is an abundant number, since it is smaller than the sum of its proper divisors (16670777264).

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

15155252020 is a wasteful number, since it uses less digits than its factorization.

15155252020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757762610 (or 757762608 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 15155252020 in words is "fifteen billion, one hundred fifty-five million, two hundred fifty-two thousand, twenty".