55747011 has 4 divisors (see below), whose sum is σ = 74329352. Its totient is φ = 37164672.

The previous prime is 55746991. The next prime is 55747057. The reversal of 55747011 is 11074755.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55747011 - 2⁶ = 55746947 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 55747011.

It is not an unprimeable number, because it can be changed into a prime (55747091) 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, 9291166 + ... + 9291171.

It is an arithmetic number, because the mean of its divisors is an integer number (18582338).

Almost surely, 2^55747011 is an apocalyptic number.

55747011 is a deficient number, since it is larger than the sum of its proper divisors (18582341).

55747011 is a wasteful number, since it uses less digits than its factorization.

55747011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18582340.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 55747011 is about 7466.3921006066. The cubic root of 55747011 is about 382.0092351778.

The spelling of 55747011 in words is "fifty-five million, seven hundred forty-seven thousand, eleven".