83740553 has 16 divisors (see below), whose sum is σ = 92762880. Its totient is φ = 75119616.

The previous prime is 83740519. The next prime is 83740633. The reversal of 83740553 is 35504738.

It is not a de Polignac number, because 83740553 - 2⁸ = 83740297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83740253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68201 + ... + 69417.

It is an arithmetic number, because the mean of its divisors is an integer number (5797680).

Almost surely, 2^83740553 is an apocalyptic number.

It is an amenable number.

83740553 is a deficient number, since it is larger than the sum of its proper divisors (9022327).

83740553 is a wasteful number, since it uses less digits than its factorization.

83740553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 83740553 is about 9150.9864495583. The cubic root of 83740553 is about 437.5005548836.

The spelling of 83740553 in words is "eighty-three million, seven hundred forty thousand, five hundred fifty-three".