82888505 has 16 divisors (see below), whose sum is σ = 114723840. Its totient is φ = 56313792.

The previous prime is 82888499. The next prime is 82888571. The reversal of 82888505 is 50588828.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 82888505 - 2⁶ = 82888441 is a prime.

It is a super-2 number, since 2×82888505² = 13741008522270050, 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, 7049 + ... + 14678.

It is an arithmetic number, because the mean of its divisors is an integer number (7170240).

Almost surely, 2^82888505 is an apocalyptic number.

It is an amenable number.

82888505 is a deficient number, since it is larger than the sum of its proper divisors (31835335).

82888505 is a wasteful number, since it uses less digits than its factorization.

82888505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21848.

The product of its (nonzero) digits is 204800, while the sum is 44.

The square root of 82888505 is about 9104.3124397178. The cubic root of 82888505 is about 436.0116587096.

The spelling of 82888505 in words is "eighty-two million, eight hundred eighty-eight thousand, five hundred five".