54767790 has 144 divisors (see below), whose sum is σ = 180863280. Its totient is φ = 11370240.

The previous prime is 54767771. The next prime is 54767809. The reversal of 54767790 is 9776745.

54767790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54767771) and next prime (54767809).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47946 + ... + 49074.

It is an arithmetic number, because the mean of its divisors is an integer number (1255995).

Almost surely, 2^54767790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54767790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90431640).

54767790 is an abundant number, since it is smaller than the sum of its proper divisors (126095490).

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

54767790 is a wasteful number, since it uses less digits than its factorization.

54767790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 54767790 is about 7400.5263326334. The cubic root of 54767790 is about 379.7592889203.

The spelling of 54767790 in words is "fifty-four million, seven hundred sixty-seven thousand, seven hundred ninety".