42722575 has 12 divisors (see below), whose sum is σ = 60544240. Its totient is φ = 29295360.

The previous prime is 42722573. The next prime is 42722587. The reversal of 42722575 is 57522724.

It is a happy number.

It is not a de Polignac number, because 42722575 - 2¹ = 42722573 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42722575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42722573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121890 + ... + 122239.

Almost surely, 2^42722575 is an apocalyptic number.

42722575 is a deficient number, since it is larger than the sum of its proper divisors (17821665).

42722575 is a wasteful number, since it uses less digits than its factorization.

42722575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244146 (or 244141 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 42722575 is about 6536.2508366800. The cubic root of 42722575 is about 349.5847456152.

The spelling of 42722575 in words is "forty-two million, seven hundred twenty-two thousand, five hundred seventy-five".