42755511 has 16 divisors (see below), whose sum is σ = 58406400. Its totient is φ = 27812928.

The previous prime is 42755509. The next prime is 42755513. The reversal of 42755511 is 11555724.

It is an interprime number because it is at equal distance from previous prime (42755509) and next prime (42755513).

It is not a de Polignac number, because 42755511 - 2¹ = 42755509 is a prime.

It is a super-2 number, since 2×42755511² = 3656067441742242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42755513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20080 + ... + 22106.

It is an arithmetic number, because the mean of its divisors is an integer number (3650400).

Almost surely, 2^42755511 is an apocalyptic number.

42755511 is a deficient number, since it is larger than the sum of its proper divisors (15650889).

42755511 is a wasteful number, since it uses less digits than its factorization.

42755511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198.

The product of its digits is 7000, while the sum is 30.

The square root of 42755511 is about 6538.7698384329. The cubic root of 42755511 is about 349.6745573494.

The spelling of 42755511 in words is "forty-two million, seven hundred fifty-five thousand, five hundred eleven".