55871632 has 20 divisors (see below), whose sum is σ = 111985020. Its totient is φ = 26972288.

The previous prime is 55871617. The next prime is 55871633. The reversal of 55871632 is 23617855.

It can be written as a sum of positive squares in 2 ways, for example, as 47941776 + 7929856 = 6924^2 + 2816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55871591 and 55871600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55871633) 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, 59743 + ... + 60670.

It is an arithmetic number, because the mean of its divisors is an integer number (5599251).

Almost surely, 2^55871632 is an apocalyptic number.

It is an amenable number.

55871632 is an abundant number, since it is smaller than the sum of its proper divisors (56113388).

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

55871632 is a wasteful number, since it uses less digits than its factorization.

55871632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120450 (or 120444 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 55871632 is about 7474.7329049271. The cubic root of 55871632 is about 382.2936805783.

The spelling of 55871632 in words is "fifty-five million, eight hundred seventy-one thousand, six hundred thirty-two".