42452550 has 72 divisors (see below), whose sum is σ = 130359216. Its totient is φ = 9702720.

The previous prime is 42452537. The next prime is 42452551. The reversal of 42452550 is 5525424.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42452551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3589 + ... + 9888.

Almost surely, 2^42452550 is an apocalyptic number.

42452550 is an abundant number, since it is smaller than the sum of its proper divisors (87906666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42452550 is a wasteful number, since it uses less digits than its factorization.

42452550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13502 (or 13494 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 42452550 is about 6515.5621399845. The cubic root of 42452550 is about 348.8466799444.

Adding to 42452550 its reverse (5525424), we get a palindrome (47977974).

The spelling of 42452550 in words is "forty-two million, four hundred fifty-two thousand, five hundred fifty".