42553829 has 2 divisors, whose sum is σ = 42553830. Its totient is φ = 42553828.

The previous prime is 42553807. The next prime is 42553843. The reversal of 42553829 is 92835524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36784225 + 5769604 = 6065^2 + 2402^2 .

It is a cyclic number.

It is not a de Polignac number, because 42553829 - 2¹² = 42549733 is a prime.

It is a super-2 number, since 2×42553829² = 3621656725122482, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42553792 and 42553801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42543829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21276914 + 21276915.

It is an arithmetic number, because the mean of its divisors is an integer number (21276915).

Almost surely, 2^42553829 is an apocalyptic number.

It is an amenable number.

42553829 is a deficient number, since it is larger than the sum of its proper divisors (1).

42553829 is an equidigital number, since it uses as much as digits as its factorization.

42553829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The square root of 42553829 is about 6523.3295946165. The cubic root of 42553829 is about 349.1238740025.

The spelling of 42553829 in words is "forty-two million, five hundred fifty-three thousand, eight hundred twenty-nine".