42032550 has 48 divisors (see below), whose sum is σ = 119135232. Its totient is φ = 9607200.

The previous prime is 42032539. The next prime is 42032561. The reversal of 42032550 is 5523024.

It is an interprime number because it is at equal distance from previous prime (42032539) and next prime (42032561).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18966 + ... + 21065.

It is an arithmetic number, because the mean of its divisors is an integer number (2481984).

Almost surely, 2^42032550 is an apocalyptic number.

42032550 is an abundant number, since it is smaller than the sum of its proper divisors (77102682).

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

42032550 is a wasteful number, since it uses less digits than its factorization.

42032550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40053 (or 40048 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 42032550 is about 6483.2514990551. The cubic root of 42032550 is about 347.6924386560.

Adding to 42032550 its reverse (5523024), we get a palindrome (47555574).

The spelling of 42032550 in words is "forty-two million, thirty-two thousand, five hundred fifty".