2015455320 has 48 divisors (see below), whose sum is σ = 6550230960. Its totient is φ = 537454656.

The previous prime is 2015455319. The next prime is 2015455367. The reversal of 2015455320 is 235545102.

It is a happy number.

2015455320 is a `hidden beast` number, since 201 + 5 + 455 + 3 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2798884 + ... + 2799603.

It is an arithmetic number, because the mean of its divisors is an integer number (136463145).

Almost surely, 2^2015455320 is an apocalyptic number.

2015455320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015455320 is an abundant number, since it is smaller than the sum of its proper divisors (4534775640).

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

2015455320 is a wasteful number, since it uses less digits than its factorization.

2015455320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5598504 (or 5598497 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2015455320 is about 44893.8227376551. The cubic root of 2015455320 is about 1263.1581396162.

The spelling of 2015455320 in words is "two billion, fifteen million, four hundred fifty-five thousand, three hundred twenty".