83505156 has 48 divisors (see below), whose sum is σ = 235783296. Its totient is φ = 22454784.

The previous prime is 83505143. The next prime is 83505161. The reversal of 83505156 is 65150538.

It is a super-2 number, since 2×83505156² = 13946222157168672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27811 + ... + 30666.

It is an arithmetic number, because the mean of its divisors is an integer number (4912152).

Almost surely, 2^83505156 is an apocalyptic number.

It is an amenable number.

83505156 is an abundant number, since it is smaller than the sum of its proper divisors (152278140).

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

83505156 is a wasteful number, since it uses less digits than its factorization.

83505156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58508 (or 58506 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 83505156 is about 9138.1155606613. The cubic root of 83505156 is about 437.0902281282.

The spelling of 83505156 in words is "eighty-three million, five hundred five thousand, one hundred fifty-six".