55247611 has 16 divisors (see below), whose sum is σ = 60712960. Its totient is φ = 50077440.

The previous prime is 55247593. The next prime is 55247617. The reversal of 55247611 is 11674255.

It is a cyclic number.

It is not a de Polignac number, because 55247611 - 2⁷ = 55247483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55247617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56650 + ... + 57616.

It is an arithmetic number, because the mean of its divisors is an integer number (3794560).

Almost surely, 2^55247611 is an apocalyptic number.

55247611 is a deficient number, since it is larger than the sum of its proper divisors (5465349).

55247611 is a wasteful number, since it uses less digits than its factorization.

55247611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114.

The product of its digits is 8400, while the sum is 31.

The square root of 55247611 is about 7432.8736703916. The cubic root of 55247611 is about 380.8650904839.

The spelling of 55247611 in words is "fifty-five million, two hundred forty-seven thousand, six hundred eleven".