83551401 has 12 divisors (see below), whose sum is σ = 120772080. Its totient is φ = 55660920.

The previous prime is 83551393. The next prime is 83551423. The reversal of 83551401 is 10415538.

It is not a de Polignac number, because 83551401 - 2³ = 83551393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83551441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15466 + ... + 20156.

It is an arithmetic number, because the mean of its divisors is an integer number (10064340).

Almost surely, 2^83551401 is an apocalyptic number.

It is an amenable number.

83551401 is a deficient number, since it is larger than the sum of its proper divisors (37220679).

83551401 is a wasteful number, since it uses less digits than its factorization.

83551401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676 (or 6673 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 83551401 is about 9140.6455461308. The cubic root of 83551401 is about 437.1708998231.

Adding to 83551401 its reverse (10415538), we get a palindrome (93966939).

The spelling of 83551401 in words is "eighty-three million, five hundred fifty-one thousand, four hundred one".