42573631 has 2 divisors, whose sum is σ = 42573632. Its totient is φ = 42573630.

The previous prime is 42573611. The next prime is 42573647. The reversal of 42573631 is 13637524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42573631 - 2⁹ = 42573119 is a prime.

It is a super-2 number, since 2×42573631² = 3625028113048322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42573593 and 42573602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42573611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21286815 + 21286816.

It is an arithmetic number, because the mean of its divisors is an integer number (21286816).

Almost surely, 2^42573631 is an apocalyptic number.

42573631 is a deficient number, since it is larger than the sum of its proper divisors (1).

42573631 is an equidigital number, since it uses as much as digits as its factorization.

42573631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 42573631 is about 6524.8472012761. The cubic root of 42573631 is about 349.1780193758.

The spelling of 42573631 in words is "forty-two million, five hundred seventy-three thousand, six hundred thirty-one".