83380551 has 8 divisors (see below), whose sum is σ = 111254784. Its totient is φ = 55546680.

The previous prime is 83380547. The next prime is 83380559. The reversal of 83380551 is 15508338.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83380551 - 2² = 83380547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83380559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4885 + ... + 13806.

It is an arithmetic number, because the mean of its divisors is an integer number (13906848).

Almost surely, 2^83380551 is an apocalyptic number.

83380551 is a deficient number, since it is larger than the sum of its proper divisors (27874233).

83380551 is a wasteful number, since it uses less digits than its factorization.

83380551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20181.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 83380551 is about 9131.2951436256. The cubic root of 83380551 is about 436.8727136542.

Adding to 83380551 its reverse (15508338), we get a palindrome (98888889).

The spelling of 83380551 in words is "eighty-three million, three hundred eighty thousand, five hundred fifty-one".