83021253 has 8 divisors (see below), whose sum is σ = 126508608. Its totient is φ = 47440704.

The previous prime is 83021249. The next prime is 83021273. The reversal of 83021253 is 35212038.

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

It is not a de Polignac number, because 83021253 - 2² = 83021249 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83021273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1976676 + ... + 1976717.

It is an arithmetic number, because the mean of its divisors is an integer number (15813576).

Almost surely, 2^83021253 is an apocalyptic number.

It is an amenable number.

83021253 is a deficient number, since it is larger than the sum of its proper divisors (43487355).

83021253 is a wasteful number, since it uses less digits than its factorization.

83021253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953403.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 83021253 is about 9111.5999143948. The cubic root of 83021253 is about 436.2442957303.

The spelling of 83021253 in words is "eighty-three million, twenty-one thousand, two hundred fifty-three".