57099066 has 32 divisors (see below), whose sum is σ = 123466560. Its totient is φ = 17542656.

The previous prime is 57099061. The next prime is 57099121. The reversal of 57099066 is 66099075.

57099066 = 829² + 830² + ... + 904².

It is not an unprimeable number, because it can be changed into a prime (57099061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2551 + ... + 10986.

It is an arithmetic number, because the mean of its divisors is an integer number (3858330).

Almost surely, 2^57099066 is an apocalyptic number.

57099066 is an abundant number, since it is smaller than the sum of its proper divisors (66367494).

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

57099066 is a wasteful number, since it uses less digits than its factorization.

57099066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13598.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 57099066 is about 7556.3923931993. The cubic root of 57099066 is about 385.0729405850.

Subtracting 57099066 from its reverse (66099075), we obtain a palindrome (9000009).

The spelling of 57099066 in words is "fifty-seven million, ninety-nine thousand, sixty-six".