55077437 has 4 divisors (see below), whose sum is σ = 55167900. Its totient is φ = 54986976.

The previous prime is 55077431. The next prime is 55077511. The reversal of 55077437 is 73477055.

55077437 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.

It can be written as a sum of positive squares in 2 ways, for example, as 10374841 + 44702596 = 3221^2 + 6686^2 .

It is a cyclic number.

It is not a de Polignac number, because 55077437 - 2¹² = 55073341 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 55077437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55077431) 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, 44312 + ... + 45537.

It is an arithmetic number, because the mean of its divisors is an integer number (13791975).

Almost surely, 2^55077437 is an apocalyptic number.

It is an amenable number.

55077437 is a deficient number, since it is larger than the sum of its proper divisors (90463).

55077437 is an equidigital number, since it uses as much as digits as its factorization.

55077437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90462.

The product of its (nonzero) digits is 102900, while the sum is 38.

The square root of 55077437 is about 7421.4174522122. The cubic root of 55077437 is about 380.4736407000.

The spelling of 55077437 in words is "fifty-five million, seventy-seven thousand, four hundred thirty-seven".