85554387 has 20 divisors (see below), whose sum is σ = 135323496. Its totient is φ = 53680320.

The previous prime is 85554347. The next prime is 85554409. The reversal of 85554387 is 78345558.

It is not a de Polignac number, because 85554387 - 2¹² = 85550291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85554347) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29689 + ... + 32442.

Almost surely, 2^85554387 is an apocalyptic number.

85554387 is a deficient number, since it is larger than the sum of its proper divisors (49769109).

85554387 is a wasteful number, since it uses less digits than its factorization.

85554387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62160 (or 62151 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 85554387 is about 9249.5614490634. The cubic root of 85554387 is about 440.6367966059.

The spelling of 85554387 in words is "eighty-five million, five hundred fifty-four thousand, three hundred eighty-seven".