55137711 has 4 divisors (see below), whose sum is σ = 73516952. Its totient is φ = 36758472.

The previous prime is 55137707. The next prime is 55137727. The reversal of 55137711 is 11773155.

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

It is not a de Polignac number, because 55137711 - 2² = 55137707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55137701) 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, 9189616 + ... + 9189621.

It is an arithmetic number, because the mean of its divisors is an integer number (18379238).

Almost surely, 2^55137711 is an apocalyptic number.

55137711 is a deficient number, since it is larger than the sum of its proper divisors (18379241).

55137711 is a wasteful number, since it uses less digits than its factorization.

55137711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18379240.

The product of its digits is 3675, while the sum is 30.

The square root of 55137711 is about 7425.4771563853. The cubic root of 55137711 is about 380.6123805610.

The spelling of 55137711 in words is "fifty-five million, one hundred thirty-seven thousand, seven hundred eleven".