42557353 has 2 divisors, whose sum is σ = 42557354. Its totient is φ = 42557352.

The previous prime is 42557323. The next prime is 42557369. The reversal of 42557353 is 35375524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40793769 + 1763584 = 6387^2 + 1328^2 .

It is a cyclic number.

It is not a de Polignac number, because 42557353 - 2⁹ = 42556841 is a prime.

It is a super-2 number, since 2×42557353² = 3622256588733218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42557323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21278676 + 21278677.

It is an arithmetic number, because the mean of its divisors is an integer number (21278677).

Almost surely, 2^42557353 is an apocalyptic number.

It is an amenable number.

42557353 is a deficient number, since it is larger than the sum of its proper divisors (1).

42557353 is an equidigital number, since it uses as much as digits as its factorization.

42557353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 34.

The square root of 42557353 is about 6523.5996964866. The cubic root of 42557353 is about 349.1335110402.

The spelling of 42557353 in words is "forty-two million, five hundred fifty-seven thousand, three hundred fifty-three".