42133455 has 48 divisors (see below), whose sum is σ = 89893440. Its totient is φ = 17777664.

The previous prime is 42133453. The next prime is 42133477. The reversal of 42133455 is 55433124.

It is not a de Polignac number, because 42133455 - 2¹ = 42133453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42133451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1050 + ... + 9239.

It is an arithmetic number, because the mean of its divisors is an integer number (1872780).

Almost surely, 2^42133455 is an apocalyptic number.

42133455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42133455 is an abundant number, since it is smaller than the sum of its proper divisors (47759985).

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

42133455 is a wasteful number, since it uses less digits than its factorization.

42133455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320 (or 10317 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 42133455 is about 6491.0288090564. The cubic root of 42133455 is about 347.9704443785.

Adding to 42133455 its reverse (55433124), we get a palindrome (97566579).

The spelling of 42133455 in words is "forty-two million, one hundred thirty-three thousand, four hundred fifty-five".