54865145 has 4 divisors (see below), whose sum is σ = 65838180. Its totient is φ = 43892112.

The previous prime is 54865127. The next prime is 54865147. The reversal of 54865145 is 54156845.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31719424 + 23145721 = 5632^2 + 4811^2 .

It is a cyclic number.

It is not a de Polignac number, because 54865145 - 2⁶ = 54865081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54865099 and 54865108.

It is not an unprimeable number, because it can be changed into a prime (54865147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5486510 + ... + 5486519.

It is an arithmetic number, because the mean of its divisors is an integer number (16459545).

Almost surely, 2^54865145 is an apocalyptic number.

It is an amenable number.

54865145 is a deficient number, since it is larger than the sum of its proper divisors (10973035).

54865145 is a wasteful number, since it uses less digits than its factorization.

54865145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10973034.

The product of its digits is 96000, while the sum is 38.

The square root of 54865145 is about 7407.1009848658. The cubic root of 54865145 is about 379.9841752413.

The spelling of 54865145 in words is "fifty-four million, eight hundred sixty-five thousand, one hundred forty-five".