55969437 has 4 divisors (see below), whose sum is σ = 74625920. Its totient is φ = 37312956.

The previous prime is 55969409. The next prime is 55969439. The reversal of 55969437 is 73496955.

55969437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55969437 - 2¹¹ = 55967389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55969439) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9328237 + ... + 9328242.

It is an arithmetic number, because the mean of its divisors is an integer number (18656480).

Almost surely, 2^55969437 is an apocalyptic number.

It is an amenable number.

55969437 is a deficient number, since it is larger than the sum of its proper divisors (18656483).

55969437 is a wasteful number, since it uses less digits than its factorization.

55969437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18656482.

The product of its digits is 1020600, while the sum is 48.

The square root of 55969437 is about 7481.2724185128. The cubic root of 55969437 is about 382.5166227985.

It can be divided in two parts, 559 and 69437, that added together give a palindrome (69996).

The spelling of 55969437 in words is "fifty-five million, nine hundred sixty-nine thousand, four hundred thirty-seven".