85078051 has 4 divisors (see below), whose sum is σ = 85409352. Its totient is φ = 84746752.

The previous prime is 85078033. The next prime is 85078079. The reversal of 85078051 is 15087058.

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

It is a cyclic number.

It is not a de Polignac number, because 85078051 - 2⁹ = 85077539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85077998 and 85078016.

It is not an unprimeable number, because it can be changed into a prime (85078001) 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, 165265 + ... + 165778.

It is an arithmetic number, because the mean of its divisors is an integer number (21352338).

Almost surely, 2^85078051 is an apocalyptic number.

85078051 is a deficient number, since it is larger than the sum of its proper divisors (331301).

85078051 is a wasteful number, since it uses less digits than its factorization.

85078051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331300.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 85078051 is about 9223.7763958153. The cubic root of 85078051 is about 439.8175052417.

The spelling of 85078051 in words is "eighty-five million, seventy-eight thousand, fifty-one".