55266549 has 24 divisors (see below), whose sum is σ = 81146592. Its totient is φ = 33433920.

The previous prime is 55266529. The next prime is 55266551. The reversal of 55266549 is 94566255.

It is not a de Polignac number, because 55266549 - 2⁸ = 55266293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55266549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55266529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30034 + ... + 31820.

It is an arithmetic number, because the mean of its divisors is an integer number (3381108).

Almost surely, 2^55266549 is an apocalyptic number.

It is an amenable number.

55266549 is a deficient number, since it is larger than the sum of its proper divisors (25880043).

55266549 is a wasteful number, since it uses less digits than its factorization.

55266549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877 (or 1864 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The square root of 55266549 is about 7434.1474965190. The cubic root of 55266549 is about 380.9086036721.

The spelling of 55266549 in words is "fifty-five million, two hundred sixty-six thousand, five hundred forty-nine".