42211252 has 6 divisors (see below), whose sum is σ = 73869698. Its totient is φ = 21105624.

The previous prime is 42211219. The next prime is 42211259. The reversal of 42211252 is 25211224.

It can be written as a sum of positive squares in only one way, i.e., 29637136 + 12574116 = 5444^2 + 3546^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42211259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5276403 + ... + 5276410.

Almost surely, 2^42211252 is an apocalyptic number.

It is an amenable number.

42211252 is a deficient number, since it is larger than the sum of its proper divisors (31658446).

42211252 is a wasteful number, since it uses less digits than its factorization.

42211252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10552817 (or 10552815 counting only the distinct ones).

The product of its digits is 320, while the sum is 19.

The square root of 42211252 is about 6497.0187009120. The cubic root of 42211252 is about 348.1844818302.

Adding to 42211252 its reverse (25211224), we get a palindrome (67422476).

The spelling of 42211252 in words is "forty-two million, two hundred eleven thousand, two hundred fifty-two".