54572307985 has 12 divisors (see below), whose sum is σ = 70911710172. Its totient is φ = 40299549888.

The previous prime is 54572307983. The next prime is 54572308009. The reversal of 54572307985 is 58970327545.

It can be written as a sum of positive squares in 6 ways, for example, as 8614809856 + 45957498129 = 92816^2 + 214377^2 .

It is not a de Polignac number, because 54572307985 - 2¹ = 54572307983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54572307983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32290462 + ... + 32292151.

It is an arithmetic number, because the mean of its divisors is an integer number (5909309181).

Almost surely, 2^54572307985 is an apocalyptic number.

It is an amenable number.

54572307985 is a deficient number, since it is larger than the sum of its proper divisors (16339402187).

54572307985 is a wasteful number, since it uses less digits than its factorization.

54572307985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64582644 (or 64582631 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 54572307985 in words is "fifty-four billion, five hundred seventy-two million, three hundred seven thousand, nine hundred eighty-five".