54997782000 has 640 divisors, whose sum is σ = 213394341888. Its totient is φ = 11920896000.

The previous prime is 54997781983. The next prime is 54997782011. The reversal of 54997782000 is 28779945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 69005602 + ... + 69006398.

Almost surely, 2^54997782000 is an apocalyptic number.

54997782000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54997782000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106697170944).

54997782000 is an abundant number, since it is smaller than the sum of its proper divisors (158396559888).

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

54997782000 is a wasteful number, since it uses less digits than its factorization.

54997782000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 54997782000 in words is "fifty-four billion, nine hundred ninety-seven million, seven hundred eighty-two thousand".