42503755 has 8 divisors (see below), whose sum is σ = 58290912. Its totient is φ = 29145408.

The previous prime is 42503753. The next prime is 42503761. The reversal of 42503755 is 55730524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42503755 - 2¹ = 42503753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42503753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607162 + ... + 607231.

It is an arithmetic number, because the mean of its divisors is an integer number (7286364).

Almost surely, 2^42503755 is an apocalyptic number.

42503755 is a deficient number, since it is larger than the sum of its proper divisors (15787157).

42503755 is a wasteful number, since it uses less digits than its factorization.

42503755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214405.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 42503755 is about 6519.4903941949. The cubic root of 42503755 is about 348.9868797458.

The spelling of 42503755 in words is "forty-two million, five hundred three thousand, seven hundred fifty-five".