55206432 has 36 divisors (see below), whose sum is σ = 156994110. Its totient is φ = 18402048.

The previous prime is 55206421. The next prime is 55206439. The reversal of 55206432 is 23460255.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 5588496 = 7044^2 + 2364^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 55206396 and 55206405.

It is not an unprimeable number, because it can be changed into a prime (55206439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95557 + ... + 96132.

Almost surely, 2^55206432 is an apocalyptic number.

It is an amenable number.

55206432 is an abundant number, since it is smaller than the sum of its proper divisors (101787678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55206432 is a wasteful number, since it uses less digits than its factorization.

55206432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191705 (or 191694 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 55206432 is about 7430.1030948433. The cubic root of 55206432 is about 380.7704405886.

Adding to 55206432 its reverse (23460255), we get a palindrome (78666687).

The spelling of 55206432 in words is "fifty-five million, two hundred six thousand, four hundred thirty-two".