55370737 has 4 divisors (see below), whose sum is σ = 56278516. Its totient is φ = 54462960.

The previous prime is 55370723. The next prime is 55370753. The reversal of 55370737 is 73707355.

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 7054336 + 48316401 = 2656^2 + 6951^2 .

It is a cyclic number.

It is not a de Polignac number, because 55370737 - 2¹⁵ = 55337969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55370696 and 55370705.

It is not an unprimeable number, because it can be changed into a prime (55370767) 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, 453798 + ... + 453919.

It is an arithmetic number, because the mean of its divisors is an integer number (14069629).

Almost surely, 2^55370737 is an apocalyptic number.

It is an amenable number.

55370737 is a deficient number, since it is larger than the sum of its proper divisors (907779).

55370737 is an equidigital number, since it uses as much as digits as its factorization.

55370737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907778.

The product of its (nonzero) digits is 77175, while the sum is 37.

The square root of 55370737 is about 7441.1515909838. The cubic root of 55370737 is about 381.1478152373.

The spelling of 55370737 in words is "fifty-five million, three hundred seventy thousand, seven hundred thirty-seven".