2015233520 has 40 divisors (see below), whose sum is σ = 4697177040. Its totient is φ = 804070400.

The previous prime is 2015233513. The next prime is 2015233531. The reversal of 2015233520 is 253325102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2015233520² = 8122332280263180800, which contains 22 as substring.

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, 671 + ... + 63489.

It is an arithmetic number, because the mean of its divisors is an integer number (117429426).

Almost surely, 2^2015233520 is an apocalyptic number.

2015233520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015233520 is an abundant number, since it is smaller than the sum of its proper divisors (2681943520).

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

2015233520 is a wasteful number, since it uses less digits than its factorization.

2015233520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63233 (or 63227 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2015233520 is about 44891.3523966476. The cubic root of 2015233520 is about 1263.1118012445. Note that the first 3 decimals are identical.

Adding to 2015233520 its reverse (253325102), we get a palindrome (2268558622).

The spelling of 2015233520 in words is "two billion, fifteen million, two hundred thirty-three thousand, five hundred twenty".