42563801 has 24 divisors (see below), whose sum is σ = 53881416. Its totient is φ = 33384960.

The previous prime is 42563797. The next prime is 42563803. The reversal of 42563801 is 10836524.

42563801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 19571776 + 22992025 = 4424^2 + 4795^2 .

It is not a de Polignac number, because 42563801 - 2² = 42563797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42563803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30131 + ... + 31511.

It is an arithmetic number, because the mean of its divisors is an integer number (2245059).

Almost surely, 2^42563801 is an apocalyptic number.

It is an amenable number.

42563801 is a deficient number, since it is larger than the sum of its proper divisors (11317615).

42563801 is a wasteful number, since it uses less digits than its factorization.

42563801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449 (or 1442 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42563801 is about 6524.0938834447. The cubic root of 42563801 is about 349.1511429263.

The spelling of 42563801 in words is "forty-two million, five hundred sixty-three thousand, eight hundred one".