57402113 has 4 divisors (see below), whose sum is σ = 57648708. Its totient is φ = 57155520.

The previous prime is 57402077. The next prime is 57402131. The reversal of 57402113 is 31120475.

57402113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25230529 + 32171584 = 5023^2 + 5672^2 .

It is a cyclic number.

It is not a de Polignac number, because 57402113 - 2²⁴ = 40624897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57402193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122948 + ... + 123413.

It is an arithmetic number, because the mean of its divisors is an integer number (14412177).

Almost surely, 2^57402113 is an apocalyptic number.

It is an amenable number.

57402113 is a deficient number, since it is larger than the sum of its proper divisors (246595).

57402113 is a wasteful number, since it uses less digits than its factorization.

57402113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246594.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 57402113 is about 7576.4182170733. The cubic root of 57402113 is about 385.7529829815.

Adding to 57402113 its reverse (31120475), we get a palindrome (88522588).

The spelling of 57402113 in words is "fifty-seven million, four hundred two thousand, one hundred thirteen".