2015525020 has 24 divisors (see below), whose sum is σ = 4263058800. Its totient is φ = 800408832.

The previous prime is 2015525011. The next prime is 2015525033. The reversal of 2015525020 is 205255102.

It is a super-2 number, since 2×2015525020² = 8124682212492000800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2015524982 and 2015525000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359725 + ... + 365284.

It is an arithmetic number, because the mean of its divisors is an integer number (177627450).

Almost surely, 2^2015525020 is an apocalyptic number.

2015525020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015525020 is an abundant number, since it is smaller than the sum of its proper divisors (2247533780).

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

2015525020 is a wasteful number, since it uses less digits than its factorization.

2015525020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725157 (or 725155 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2015525020 is about 44894.5990070075. The cubic root of 2015525020 is about 1263.1727006117.

The spelling of 2015525020 in words is "two billion, fifteen million, five hundred twenty-five thousand, twenty".