55205393 has 8 divisors (see below), whose sum is σ = 59529120. Its totient is φ = 51023520.

The previous prime is 55205377. The next prime is 55205419. The reversal of 55205393 is 39350255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55205393 - 2⁴ = 55205377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55205363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34655 + ... + 36212.

It is an arithmetic number, because the mean of its divisors is an integer number (7441140).

Almost surely, 2^55205393 is an apocalyptic number.

It is an amenable number.

55205393 is a deficient number, since it is larger than the sum of its proper divisors (4323727).

55205393 is a wasteful number, since it uses less digits than its factorization.

55205393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70927.

The product of its (nonzero) digits is 20250, while the sum is 32.

The square root of 55205393 is about 7430.0331762382. The cubic root of 55205393 is about 380.7680518393.

The spelling of 55205393 in words is "fifty-five million, two hundred five thousand, three hundred ninety-three".