85140482554 has 4 divisors (see below), whose sum is σ = 127710723834. Its totient is φ = 42570241276.

The previous prime is 85140482491. The next prime is 85140482569. The reversal of 85140482554 is 45528404158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45528404158 = 2 ⋅22764202079.

It can be written as a sum of positive squares in only one way, i.e., 47823129225 + 37317353329 = 218685^2 + 193177^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21285120637 + ... + 21285120640.

Almost surely, 2^85140482554 is an apocalyptic number.

85140482554 is a deficient number, since it is larger than the sum of its proper divisors (42570241280).

85140482554 is a wasteful number, since it uses less digits than its factorization.

85140482554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42570241279.

The product of its (nonzero) digits is 1024000, while the sum is 46.

The spelling of 85140482554 in words is "eighty-five billion, one hundred forty million, four hundred eighty-two thousand, five hundred fifty-four".