57989091 has 16 divisors (see below), whose sum is σ = 82021248. Its totient is φ = 36316800.

The previous prime is 57989053. The next prime is 57989093. The reversal of 57989091 is 19098975.

It is not a de Polignac number, because 57989091 - 2¹⁸ = 57726947 is a prime.

It is a super-3 number, since 3×57989091³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57989091.

It is not an unprimeable number, because it can be changed into a prime (57989093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48936 + ... + 50106.

It is an arithmetic number, because the mean of its divisors is an integer number (5126328).

Almost surely, 2^57989091 is an apocalyptic number.

57989091 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

57989091 is a deficient number, since it is larger than the sum of its proper divisors (24032157).

57989091 is a wasteful number, since it uses less digits than its factorization.

57989091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 57989091 is about 7615.0568612454. The cubic root of 57989091 is about 387.0633939243.

The spelling of 57989091 in words is "fifty-seven million, nine hundred eighty-nine thousand, ninety-one".