55435231 has 8 divisors (see below), whose sum is σ = 56908800. Its totient is φ = 53974008.

The previous prime is 55435229. The next prime is 55435273. The reversal of 55435231 is 13253455.

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 55435231 - 2¹ = 55435229 is a prime.

It is a super-2 number, since 2×55435231² = 6146129672046722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55435231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55435291) 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, 6390 + ... + 12316.

It is an arithmetic number, because the mean of its divisors is an integer number (7113600).

Almost surely, 2^55435231 is an apocalyptic number.

55435231 is a deficient number, since it is larger than the sum of its proper divisors (1473569).

55435231 is a wasteful number, since it uses less digits than its factorization.

55435231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6173.

The product of its digits is 9000, while the sum is 28.

The square root of 55435231 is about 7445.4839332309. The cubic root of 55435231 is about 381.2957406018.

Adding to 55435231 its reverse (13253455), we get a palindrome (68688686).

The spelling of 55435231 in words is "fifty-five million, four hundred thirty-five thousand, two hundred thirty-one".