55747537 has 2 divisors, whose sum is σ = 55747538. Its totient is φ = 55747536.

The previous prime is 55747529. The next prime is 55747583. The reversal of 55747537 is 73574755.

55747537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35533521 + 20214016 = 5961^2 + 4496^2 .

It is a cyclic number.

It is not a de Polignac number, because 55747537 - 2³ = 55747529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55747493 and 55747502.

It is not a weakly prime, because it can be changed into another prime (55747597) 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 as a sum of consecutive naturals, namely, 27873768 + 27873769.

It is an arithmetic number, because the mean of its divisors is an integer number (27873769).

Almost surely, 2^55747537 is an apocalyptic number.

It is an amenable number.

55747537 is a deficient number, since it is larger than the sum of its proper divisors (1).

55747537 is an equidigital number, since it uses as much as digits as its factorization.

55747537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 514500, while the sum is 43.

The square root of 55747537 is about 7466.4273250330. The cubic root of 55747537 is about 382.0104366546.

The spelling of 55747537 in words is "fifty-five million, seven hundred forty-seven thousand, five hundred thirty-seven".