42522077 has 4 divisors (see below), whose sum is σ = 45793020. Its totient is φ = 39251136.

The previous prime is 42522071. The next prime is 42522079. The reversal of 42522077 is 77022524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11930116 + 30591961 = 3454^2 + 5531^2 .

It is a cyclic number.

It is not a de Polignac number, because 42522077 - 2⁴ = 42522061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42522071) 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, 1635452 + ... + 1635477.

It is an arithmetic number, because the mean of its divisors is an integer number (11448255).

Almost surely, 2^42522077 is an apocalyptic number.

It is an amenable number.

42522077 is a deficient number, since it is larger than the sum of its proper divisors (3270943).

42522077 is a wasteful number, since it uses less digits than its factorization.

42522077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270942.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 42522077 is about 6520.8954139750. The cubic root of 42522077 is about 349.0370182106.

The spelling of 42522077 in words is "forty-two million, five hundred twenty-two thousand, seventy-seven".