55464545 has 4 divisors (see below), whose sum is σ = 66557460. Its totient is φ = 44371632.

The previous prime is 55464529. The next prime is 55464547. The reversal of 55464545 is 54546455.

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 39790864 + 15673681 = 6308^2 + 3959^2 .

It is a cyclic number.

It is not a de Polignac number, because 55464545 - 2⁴ = 55464529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55464499 and 55464508.

It is not an unprimeable number, because it can be changed into a prime (55464547) 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, 5546450 + ... + 5546459.

It is an arithmetic number, because the mean of its divisors is an integer number (16639365).

Almost surely, 2^55464545 is an apocalyptic number.

It is an amenable number.

55464545 is a deficient number, since it is larger than the sum of its proper divisors (11092915).

55464545 is a wasteful number, since it uses less digits than its factorization.

55464545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092914.

The product of its digits is 240000, while the sum is 38.

The square root of 55464545 is about 7447.4522489238. The cubic root of 55464545 is about 381.3629381435.

The spelling of 55464545 in words is "fifty-five million, four hundred sixty-four thousand, five hundred forty-five".