55078337 has 4 divisors (see below), whose sum is σ = 56977620. Its totient is φ = 53179056.

The previous prime is 55078327. The next prime is 55078349. The reversal of 55078337 is 73387055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38950081 + 16128256 = 6241^2 + 4016^2 .

It is a cyclic number.

It is not a de Polignac number, because 55078337 - 2²⁰ = 54029761 is a prime.

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 55078337.

It is not an unprimeable number, because it can be changed into a prime (55078327) 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, 949598 + ... + 949655.

It is an arithmetic number, because the mean of its divisors is an integer number (14244405).

Almost surely, 2^55078337 is an apocalyptic number.

It is an amenable number.

55078337 is a deficient number, since it is larger than the sum of its proper divisors (1899283).

55078337 is a wasteful number, since it uses less digits than its factorization.

55078337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899282.

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 55078337 is about 7421.4780872815. The cubic root of 55078337 is about 380.4757130817.

It can be divided in two parts, 550 and 78337, that added together give a palindrome (78887).

The spelling of 55078337 in words is "fifty-five million, seventy-eight thousand, three hundred thirty-seven".