85878554 has 16 divisors (see below), whose sum is σ = 132626688. Its totient is φ = 41675472.

The previous prime is 85878553. The next prime is 85878557. The reversal of 85878554 is 45587858.

It is not an unprimeable number, because it can be changed into a prime (85878553) 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, 34847 + ... + 37229.

It is an arithmetic number, because the mean of its divisors is an integer number (8289168).

Almost surely, 2^85878554 is an apocalyptic number.

85878554 is a deficient number, since it is larger than the sum of its proper divisors (46748134).

85878554 is a wasteful number, since it uses less digits than its factorization.

85878554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909.

The product of its digits is 1792000, while the sum is 50.

The square root of 85878554 is about 9267.0682526892. The cubic root of 85878554 is about 441.1926219105.

The spelling of 85878554 in words is "eighty-five million, eight hundred seventy-eight thousand, five hundred fifty-four".