55354645 has 4 divisors (see below), whose sum is σ = 66425580. Its totient is φ = 44283712.

The previous prime is 55354613. The next prime is 55354661. The reversal of 55354645 is 54645355.

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 8814961 + 46539684 = 2969^2 + 6822^2 .

It is a cyclic number.

It is not a de Polignac number, because 55354645 - 2⁵ = 55354613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5535460 + ... + 5535469.

It is an arithmetic number, because the mean of its divisors is an integer number (16606395).

Almost surely, 2^55354645 is an apocalyptic number.

It is an amenable number.

55354645 is a deficient number, since it is larger than the sum of its proper divisors (11070935).

55354645 is a wasteful number, since it uses less digits than its factorization.

55354645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070934.

The product of its digits is 180000, while the sum is 37.

The square root of 55354645 is about 7440.0702281632. The cubic root of 55354645 is about 381.1108882415.

The spelling of 55354645 in words is "fifty-five million, three hundred fifty-four thousand, six hundred forty-five".