42525827801 has 4 divisors (see below), whose sum is σ = 42923265552. Its totient is φ = 42128390052.

The previous prime is 42525827741. The next prime is 42525827867. The reversal of 42525827801 is 10872852524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42525827801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42525827501) 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, 198718715 + ... + 198718928.

It is an arithmetic number, because the mean of its divisors is an integer number (10730816388).

Almost surely, 2^42525827801 is an apocalyptic number.

It is an amenable number.

42525827801 is a deficient number, since it is larger than the sum of its proper divisors (397437751).

42525827801 is a wasteful number, since it uses less digits than its factorization.

42525827801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397437750.

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 42525827801 in words is "forty-two billion, five hundred twenty-five million, eight hundred twenty-seven thousand, eight hundred one".