5507778 has 16 divisors (see below), whose sum is σ = 11050560. Its totient is φ = 1830096.

The previous prime is 5507773. The next prime is 5507791. The reversal of 5507778 is 8777055.

It is not an unprimeable number, because it can be changed into a prime (5507771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876 + ... + 3432.

It is an arithmetic number, because the mean of its divisors is an integer number (690660).

Almost surely, 2^5507778 is an apocalyptic number.

5507778 is an abundant number, since it is smaller than the sum of its proper divisors (5542782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5507778 is a wasteful number, since it uses less digits than its factorization.

5507778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921.

The product of its (nonzero) digits is 68600, while the sum is 39.

The square root of 5507778 is about 2346.8655692221. The cubic root of 5507778 is about 176.6005868132.

It can be divided in two parts, 55077 and 78, that added together give a palindrome (55155).

The spelling of 5507778 in words is "five million, five hundred seven thousand, seven hundred seventy-eight".