42552213 has 16 divisors (see below), whose sum is σ = 62078016. Its totient is φ = 25712640.

The previous prime is 42552203. The next prime is 42552221. The reversal of 42552213 is 31225524.

It is not a de Polignac number, because 42552213 - 2¹² = 42548117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42552203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10581 + ... + 14037.

It is an arithmetic number, because the mean of its divisors is an integer number (3879876).

Almost surely, 2^42552213 is an apocalyptic number.

It is an amenable number.

42552213 is a deficient number, since it is larger than the sum of its proper divisors (19525803).

42552213 is a wasteful number, since it uses less digits than its factorization.

42552213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844.

The product of its digits is 2400, while the sum is 24.

The square root of 42552213 is about 6523.2057303139. The cubic root of 42552213 is about 349.1194545700.

Adding to 42552213 its reverse (31225524), we get a palindrome (73777737).

It can be divided in two parts, 42 and 552213, that added together give a palindrome (552255).

The spelling of 42552213 in words is "forty-two million, five hundred fifty-two thousand, two hundred thirteen".