82153554 has 32 divisors (see below), whose sum is σ = 198827136. Its totient is φ = 22091520.

The previous prime is 82153541. The next prime is 82153583. The reversal of 82153554 is 45535128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56817 + ... + 58244.

It is an arithmetic number, because the mean of its divisors is an integer number (6213348).

Almost surely, 2^82153554 is an apocalyptic number.

82153554 is an abundant number, since it is smaller than the sum of its proper divisors (116673582).

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

82153554 is a wasteful number, since it uses less digits than its factorization.

82153554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115090.

The product of its digits is 24000, while the sum is 33.

The square root of 82153554 is about 9063.8597738491. The cubic root of 82153554 is about 434.7191634260.

The spelling of 82153554 in words is "eighty-two million, one hundred fifty-three thousand, five hundred fifty-four".