55552773 has 16 divisors (see below), whose sum is σ = 75185600. Its totient is φ = 36481536.

The previous prime is 55552771. The next prime is 55552793. The reversal of 55552773 is 37725555.

It is not a de Polignac number, because 55552773 - 2¹ = 55552771 is a prime.

It is a super-2 number, since 2×55552773² = 6172221175979058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55552771) 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, 101286 + ... + 101832.

It is an arithmetic number, because the mean of its divisors is an integer number (4699100).

Almost surely, 2^55552773 is an apocalyptic number.

It is an amenable number.

55552773 is a deficient number, since it is larger than the sum of its proper divisors (19632827).

55552773 is a wasteful number, since it uses less digits than its factorization.

55552773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996.

The product of its digits is 183750, while the sum is 39.

The square root of 55552773 is about 7453.3732631608. The cubic root of 55552773 is about 381.5650436161.

It can be divided in two parts, 5 and 5552773, that added together give a triangular number (5552778 = T₃₃₃₂).

The spelling of 55552773 in words is "fifty-five million, five hundred fifty-two thousand, seven hundred seventy-three".