55358437 has 4 divisors (see below), whose sum is σ = 55503360. Its totient is φ = 55213516.

The previous prime is 55358399. The next prime is 55358441. The reversal of 55358437 is 73485355.

It is the 3038-th star number.

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 55358437 - 2²³ = 46969829 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55358437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55358497) 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, 71887 + ... + 72652.

It is an arithmetic number, because the mean of its divisors is an integer number (13875840).

Almost surely, 2^55358437 is an apocalyptic number.

It is an amenable number.

55358437 is a deficient number, since it is larger than the sum of its proper divisors (144923).

55358437 is a wasteful number, since it uses less digits than its factorization.

55358437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144922.

The product of its digits is 252000, while the sum is 40.

The square root of 55358437 is about 7440.3250601032. The cubic root of 55358437 is about 381.1195905494.

The spelling of 55358437 in words is "fifty-five million, three hundred fifty-eight thousand, four hundred thirty-seven".