55035631 has 4 divisors (see below), whose sum is σ = 62897872. Its totient is φ = 47173392.

The previous prime is 55035623. The next prime is 55035641. The reversal of 55035631 is 13653055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55035631 - 2³ = 55035623 is a prime.

It is a super-2 number, since 2×55035631² = 6057841359136322, 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 55035631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55035611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3931110 + ... + 3931123.

It is an arithmetic number, because the mean of its divisors is an integer number (15724468).

Almost surely, 2^55035631 is an apocalyptic number.

55035631 is a deficient number, since it is larger than the sum of its proper divisors (7862241).

55035631 is an equidigital number, since it uses as much as digits as its factorization.

55035631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7862240.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 55035631 is about 7418.6003396867. The cubic root of 55035631 is about 380.3773513782.

Adding to 55035631 its reverse (13653055), we get a palindrome (68688686).

The spelling of 55035631 in words is "fifty-five million, thirty-five thousand, six hundred thirty-one".