55767755 has 16 divisors (see below), whose sum is σ = 73509120. Its totient is φ = 40426848.

The previous prime is 55767743. The next prime is 55767787. The reversal of 55767755 is 55776755.

It is a cyclic number.

It is not a de Polignac number, because 55767755 - 2¹⁶ = 55702219 is a prime.

It is a super-2 number, since 2×55767755² = 6220084995480050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10577 + ... + 14946.

It is an arithmetic number, because the mean of its divisors is an integer number (4594320).

Almost surely, 2^55767755 is an apocalyptic number.

55767755 is a deficient number, since it is larger than the sum of its proper divisors (17741365).

55767755 is a wasteful number, since it uses less digits than its factorization.

55767755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25570.

The product of its digits is 1286250, while the sum is 47.

The square root of 55767755 is about 7467.7811296261. The cubic root of 55767755 is about 382.0566124077.

It can be divided in two parts, 5576 and 7755, that added together give a palindrome (13331).

The spelling of 55767755 in words is "fifty-five million, seven hundred sixty-seven thousand, seven hundred fifty-five".