55131532 has 6 divisors (see below), whose sum is σ = 96480188. Its totient is φ = 27565764.

The previous prime is 55131509. The next prime is 55131541. The reversal of 55131532 is 23513155.

55131532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55131497 and 55131506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6891438 + ... + 6891445.

Almost surely, 2^55131532 is an apocalyptic number.

It is an amenable number.

55131532 is a deficient number, since it is larger than the sum of its proper divisors (41348656).

55131532 is a wasteful number, since it uses less digits than its factorization.

55131532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13782887 (or 13782885 counting only the distinct ones).

The product of its digits is 2250, while the sum is 25.

The square root of 55131532 is about 7425.0610771899. The cubic root of 55131532 is about 380.5981622718.

Adding to 55131532 its reverse (23513155), we get a palindrome (78644687).

It can be divided in two parts, 5513153 and 2, that added together give a palindrome (5513155).

The spelling of 55131532 in words is "fifty-five million, one hundred thirty-one thousand, five hundred thirty-two".