55240761 has 8 divisors (see below), whose sum is σ = 74096064. Its totient is φ = 36606320.

The previous prime is 55240747. The next prime is 55240777. The reversal of 55240761 is 16704255.

55240761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55240761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55240711) 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, 54630 + ... + 55631.

It is an arithmetic number, because the mean of its divisors is an integer number (9262008).

Almost surely, 2^55240761 is an apocalyptic number.

It is an amenable number.

55240761 is a deficient number, since it is larger than the sum of its proper divisors (18855303).

55240761 is a wasteful number, since it uses less digits than its factorization.

55240761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110431.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 55240761 is about 7432.4128652814. The cubic root of 55240761 is about 380.8493490267.

The spelling of 55240761 in words is "fifty-five million, two hundred forty thousand, seven hundred sixty-one".