55361632 has 24 divisors (see below), whose sum is σ = 109279800. Its totient is φ = 27608064.

The previous prime is 55361623. The next prime is 55361633. The reversal of 55361632 is 23616355.

It is a junction number, because it is equal to n+sod(n) for n = 55361594 and 55361603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55361633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11344 + ... + 15472.

It is an arithmetic number, because the mean of its divisors is an integer number (4553325).

Almost surely, 2^55361632 is an apocalyptic number.

It is an amenable number.

55361632 is a deficient number, since it is larger than the sum of its proper divisors (53918168).

55361632 is a wasteful number, since it uses less digits than its factorization.

55361632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558 (or 4550 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 55361632 is about 7440.5397653665. The cubic root of 55361632 is about 381.1269224861.

Adding to 55361632 its reverse (23616355), we get a palindrome (78977987).

The spelling of 55361632 in words is "fifty-five million, three hundred sixty-one thousand, six hundred thirty-two".