57405433 has 2 divisors, whose sum is σ = 57405434. Its totient is φ = 57405432.

The previous prime is 57405431. The next prime is 57405437. The reversal of 57405433 is 33450475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56746089 + 659344 = 7533^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 57405433 - 2¹ = 57405431 is a prime.

Together with 57405431, it forms a pair of twin primes.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 57405395 and 57405404.

It is not a weakly prime, because it can be changed into another prime (57405431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28702716 + 28702717.

It is an arithmetic number, because the mean of its divisors is an integer number (28702717).

Almost surely, 2^57405433 is an apocalyptic number.

It is an amenable number.

57405433 is a deficient number, since it is larger than the sum of its proper divisors (1).

57405433 is an equidigital number, since it uses as much as digits as its factorization.

57405433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 57405433 is about 7576.6373147987. The cubic root of 57405433 is about 385.7604198460.

The spelling of 57405433 in words is "fifty-seven million, four hundred five thousand, four hundred thirty-three".