55520301 has 8 divisors (see below), whose sum is σ = 75602304. Its totient is φ = 36225920.

The previous prime is 55520293. The next prime is 55520323. The reversal of 55520301 is 10302555.

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 55520301 - 2³ = 55520293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55520401) 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, 196740 + ... + 197021.

It is an arithmetic number, because the mean of its divisors is an integer number (9450288).

Almost surely, 2^55520301 is an apocalyptic number.

It is an amenable number.

55520301 is a deficient number, since it is larger than the sum of its proper divisors (20082003).

55520301 is a wasteful number, since it uses less digits than its factorization.

55520301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393811.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55520301 is about 7451.1946022098. The cubic root of 55520301 is about 381.4906843217.

Adding to 55520301 its reverse (10302555), we get a palindrome (65822856).

The spelling of 55520301 in words is "fifty-five million, five hundred twenty thousand, three hundred one".