54757780 has 144 divisors (see below), whose sum is σ = 152143488. Its totient is φ = 16070400.

The previous prime is 54757757. The next prime is 54757783. The reversal of 54757780 is 8775745.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54757783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1479922 + ... + 1479958.

It is an arithmetic number, because the mean of its divisors is an integer number (1056552).

Almost surely, 2^54757780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54757780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76071744).

54757780 is an abundant number, since it is smaller than the sum of its proper divisors (97385708).

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

54757780 is a wasteful number, since it uses less digits than its factorization.

54757780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 54757780 is about 7399.8499984797. The cubic root of 54757780 is about 379.7361510985.

The spelling of 54757780 in words is "fifty-four million, seven hundred fifty-seven thousand, seven hundred eighty".