85878556 has 24 divisors (see below), whose sum is σ = 163304960. Its totient is φ = 39366000.

The previous prime is 85878553. The next prime is 85878557. The reversal of 85878556 is 65587858.

It is a congruent number.

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, 15870 + ... + 20581.

Almost surely, 2^85878556 is an apocalyptic number.

It is an amenable number.

85878556 is a deficient number, since it is larger than the sum of its proper divisors (77426404).

85878556 is a wasteful number, since it uses less digits than its factorization.

85878556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36505 (or 36503 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 52.

The square root of 85878556 is about 9267.0683605982. The cubic root of 85878556 is about 441.1926253354.

The spelling of 85878556 in words is "eighty-five million, eight hundred seventy-eight thousand, five hundred fifty-six".