55965437 has 4 divisors (see below), whose sum is σ = 61053216. Its totient is φ = 50877660.

The previous prime is 55965421. The next prime is 55965449. The reversal of 55965437 is 73456955.

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 a cyclic number.

It is not a de Polignac number, because 55965437 - 2⁴ = 55965421 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 (55965407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543873 + ... + 2543894.

It is an arithmetic number, because the mean of its divisors is an integer number (15263304).

Almost surely, 2^55965437 is an apocalyptic number.

It is an amenable number.

55965437 is a deficient number, since it is larger than the sum of its proper divisors (5087779).

55965437 is a wasteful number, since it uses less digits than its factorization.

55965437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087778.

The product of its digits is 567000, while the sum is 44.

The square root of 55965437 is about 7481.0050795331. The cubic root of 55965437 is about 382.5075100694.

It can be divided in two parts, 55 and 965437, that multiplied together give a palindrome (53099035).

The spelling of 55965437 in words is "fifty-five million, nine hundred sixty-five thousand, four hundred thirty-seven".