42525697 has 4 divisors (see below), whose sum is σ = 42677316. Its totient is φ = 42374080.

The previous prime is 42525683. The next prime is 42525701. The reversal of 42525697 is 79652524.

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 38489616 + 4036081 = 6204^2 + 2009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42525697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42595697) 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, 75388 + ... + 75949.

It is an arithmetic number, because the mean of its divisors is an integer number (10669329).

Almost surely, 2^42525697 is an apocalyptic number.

It is an amenable number.

42525697 is a deficient number, since it is larger than the sum of its proper divisors (151619).

42525697 is a wasteful number, since it uses less digits than its factorization.

42525697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151618.

The product of its digits is 151200, while the sum is 40.

The square root of 42525697 is about 6521.1729773101. The cubic root of 42525697 is about 349.0469226982.

The spelling of 42525697 in words is "forty-two million, five hundred twenty-five thousand, six hundred ninety-seven".