83013550 has 48 divisors (see below), whose sum is σ = 164989440. Its totient is φ = 30965760.

The previous prime is 83013523. The next prime is 83013559. The reversal of 83013550 is 5531038.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83013559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107566 + ... + 108334.

It is an arithmetic number, because the mean of its divisors is an integer number (3437280).

Almost surely, 2^83013550 is an apocalyptic number.

83013550 is a deficient number, since it is larger than the sum of its proper divisors (81975890).

83013550 is a wasteful number, since it uses less digits than its factorization.

83013550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 83013550 is about 9111.1772016573. The cubic root of 83013550 is about 436.2308032264.

Adding to 83013550 its reverse (5531038), we get a palindrome (88544588).

The spelling of 83013550 in words is "eighty-three million, thirteen thousand, five hundred fifty".