55782594 has 96 divisors (see below), whose sum is σ = 150958080. Its totient is φ = 15081552.

The previous prime is 55782589. The next prime is 55782607. The reversal of 55782594 is 49528755.

55782594 is a `hidden beast` number, since 5 + 57 + 8 + 2 + 594 = 666.

It is a super-2 number, since 2×55782594² = 6223395586737672, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64207 + ... + 65069.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 2^55782594 is an apocalyptic number.

55782594 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55782594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75479040).

55782594 is an abundant number, since it is smaller than the sum of its proper divisors (95175486).

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

55782594 is a wasteful number, since it uses less digits than its factorization.

55782594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 894 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 55782594 is about 7468.7745982859. The cubic root of 55782594 is about 382.0904959981.

The spelling of 55782594 in words is "fifty-five million, seven hundred eighty-two thousand, five hundred ninety-four".