55313532 has 18 divisors (see below), whose sum is σ = 139820408. Its totient is φ = 18437832.

The previous prime is 55313513. The next prime is 55313537. The reversal of 55313532 is 23531355.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 55313496 and 55313505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55313537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 768208 + ... + 768279.

Almost surely, 2^55313532 is an apocalyptic number.

It is an amenable number.

55313532 is an abundant number, since it is smaller than the sum of its proper divisors (84506876).

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

55313532 is a wasteful number, since it uses less digits than its factorization.

55313532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536497 (or 1536492 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 55313532 is about 7437.3067705992. The cubic root of 55313532 is about 381.0165119841.

Adding to 55313532 its reverse (23531355), we get a palindrome (78844887).

It can be divided in two parts, 5531353 and 2, that added together give a palindrome (5531355).

The spelling of 55313532 in words is "fifty-five million, three hundred thirteen thousand, five hundred thirty-two".