57550014 has 40 divisors (see below), whose sum is σ = 130244400. Its totient is φ = 18991584.

The previous prime is 57549991. The next prime is 57550021. The reversal of 57550014 is 41005575.

It is a super-2 number, since 2×57550014² = 6624008222800392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 57550014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14962 + ... + 18410.

It is an arithmetic number, because the mean of its divisors is an integer number (3256110).

Almost surely, 2^57550014 is an apocalyptic number.

57550014 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 57550014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65122200).

57550014 is an abundant number, since it is smaller than the sum of its proper divisors (72694386).

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

57550014 is a wasteful number, since it uses less digits than its factorization.

57550014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 57550014 is about 7586.1725527436. The cubic root of 57550014 is about 386.0840063432.

Adding to 57550014 its reverse (41005575), we get a palindrome (98555589).

The spelling of 57550014 in words is "fifty-seven million, five hundred fifty thousand, fourteen".