42755229 has 48 divisors (see below), whose sum is σ = 72777600. Its totient is φ = 24742080.

The previous prime is 42755203. The next prime is 42755233. The reversal of 42755229 is 92255724.

It is a happy number.

42755229 is a `hidden beast` number, since 427 + 5 + 5 + 229 = 666.

It is not a de Polignac number, because 42755229 - 2¹³ = 42747037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42755193 and 42755202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42755249) 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, 74857 + ... + 75425.

It is an arithmetic number, because the mean of its divisors is an integer number (1516200).

Almost surely, 2^42755229 is an apocalyptic number.

It is an amenable number.

42755229 is a deficient number, since it is larger than the sum of its proper divisors (30022371).

42755229 is a wasteful number, since it uses less digits than its factorization.

42755229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 606 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 42755229 is about 6538.7482747082. The cubic root of 42755229 is about 349.6737885718.

The spelling of 42755229 in words is "forty-two million, seven hundred fifty-five thousand, two hundred twenty-nine".