83405054 has 4 divisors (see below), whose sum is σ = 125107584. Its totient is φ = 41702526.

The previous prime is 83405051. The next prime is 83405099. The reversal of 83405054 is 45050438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45050438 = 2 ⋅22525219.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83405051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20851262 + ... + 20851265.

It is an arithmetic number, because the mean of its divisors is an integer number (31276896).

Almost surely, 2^83405054 is an apocalyptic number.

83405054 is a deficient number, since it is larger than the sum of its proper divisors (41702530).

83405054 is a wasteful number, since it uses less digits than its factorization.

83405054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41702529.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 83405054 is about 9132.6367495921. The cubic root of 83405054 is about 436.9155039834.

The spelling of 83405054 in words is "eighty-three million, four hundred five thousand, fifty-four".