55740137 has 8 divisors (see below), whose sum is σ = 56260776. Its totient is φ = 55222272.

The previous prime is 55740133. The next prime is 55740151. The reversal of 55740137 is 73104755.

55740137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8185321 + 47554816 = 2861^2 + 6896^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55740137 - 2² = 55740133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55740131) 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 7 ways as a sum of consecutive naturals, for example, 64613 + ... + 65469.

It is an arithmetic number, because the mean of its divisors is an integer number (7032597).

Almost surely, 2^55740137 is an apocalyptic number.

It is an amenable number.

55740137 is a deficient number, since it is larger than the sum of its proper divisors (520639).

55740137 is a wasteful number, since it uses less digits than its factorization.

55740137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 55740137 is about 7465.9317569879. The cubic root of 55740137 is about 381.9935330539.

The spelling of 55740137 in words is "fifty-five million, seven hundred forty thousand, one hundred thirty-seven".