57421099 has 4 divisors (see below), whose sum is σ = 57859560. Its totient is φ = 56982640.

The previous prime is 57421081. The next prime is 57421123. The reversal of 57421099 is 99012475.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57421099 - 2¹³ = 57412907 is a prime.

It is a super-2 number, since 2×57421099² = 6594365220735602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57421079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219034 + ... + 219295.

It is an arithmetic number, because the mean of its divisors is an integer number (14464890).

Almost surely, 2^57421099 is an apocalyptic number.

57421099 is a deficient number, since it is larger than the sum of its proper divisors (438461).

57421099 is a wasteful number, since it uses less digits than its factorization.

57421099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438460.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 57421099 is about 7577.6710802198. The cubic root of 57421099 is about 385.7955081223.

The spelling of 57421099 in words is "fifty-seven million, four hundred twenty-one thousand, ninety-nine".