83780552 has 16 divisors (see below), whose sum is σ = 159434160. Its totient is φ = 41264784.

The previous prime is 83780551. The next prime is 83780563. The reversal of 83780552 is 25508738.

It is not an unprimeable number, because it can be changed into a prime (83780551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77618 + ... + 78689.

It is an arithmetic number, because the mean of its divisors is an integer number (9964635).

Almost surely, 2^83780552 is an apocalyptic number.

It is an amenable number.

83780552 is a deficient number, since it is larger than the sum of its proper divisors (75653608).

83780552 is a wasteful number, since it uses less digits than its factorization.

83780552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156380 (or 156376 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 83780552 is about 9153.1716907310. The cubic root of 83780552 is about 437.5702017415.

The spelling of 83780552 in words is "eighty-three million, seven hundred eighty thousand, five hundred fifty-two".