85053403 has 4 divisors (see below), whose sum is σ = 85072968. Its totient is φ = 85033840.

The previous prime is 85053401. The next prime is 85053407. The reversal of 85053403 is 30435058.

85053403 is a nontrivial binomial coefficient, being equal to C(13043, 2).

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85053403 - 2¹ = 85053401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85053401) 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, 1 + ... + 13042.

It is an arithmetic number, because the mean of its divisors is an integer number (21268242).

Almost surely, 2^85053403 is an apocalyptic number.

85053403 is the 13042-nd triangular number.

85053403 is the 4348-th centered nonagonal number.

85053403 is a deficient number, since it is larger than the sum of its proper divisors (19565).

85053403 is a wasteful number, since it uses less digits than its factorization.

85053403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19564.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 85053403 is about 9222.4401868486. The cubic root of 85053403 is about 439.7750278977.

The spelling of 85053403 in words is "eighty-five million, fifty-three thousand, four hundred three".