57235403 has 4 divisors (see below), whose sum is σ = 57492288. Its totient is φ = 56978520.

The previous prime is 57235363. The next prime is 57235427. The reversal of 57235403 is 30453275.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57235403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57235433) 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, 128108 + ... + 128553.

It is an arithmetic number, because the mean of its divisors is an integer number (14373072).

Almost surely, 2^57235403 is an apocalyptic number.

57235403 is a deficient number, since it is larger than the sum of its proper divisors (256885).

57235403 is a wasteful number, since it uses less digits than its factorization.

57235403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256884.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 57235403 is about 7565.4083168062. The cubic root of 57235403 is about 385.3791800359.

Adding to 57235403 its reverse (30453275), we get a palindrome (87688678).

The spelling of 57235403 in words is "fifty-seven million, two hundred thirty-five thousand, four hundred three".