42252403 has 4 divisors (see below), whose sum is σ = 44089488. Its totient is φ = 40415320.

The previous prime is 42252341. The next prime is 42252451. The reversal of 42252403 is 30425224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42252403 - 2²⁵ = 8697971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42252493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918508 + ... + 918553.

It is an arithmetic number, because the mean of its divisors is an integer number (11022372).

Almost surely, 2^42252403 is an apocalyptic number.

42252403 is a deficient number, since it is larger than the sum of its proper divisors (1837085).

42252403 is a wasteful number, since it uses less digits than its factorization.

42252403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837084.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 42252403 is about 6500.1848435256. The cubic root of 42252403 is about 348.2975913715.

Adding to 42252403 its reverse (30425224), we get a palindrome (72677627).

It can be divided in two parts, 422 and 52403, that added together give a palindrome (52825).

The spelling of 42252403 in words is "forty-two million, two hundred fifty-two thousand, four hundred three".