42507801 has 16 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 24290064.

The previous prime is 42507757. The next prime is 42507809. The reversal of 42507801 is 10870524.

It is not a de Polignac number, because 42507801 - 2⁶ = 42507737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42507809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112266 + ... + 112643.

It is an arithmetic number, because the mean of its divisors is an integer number (4498200).

Almost surely, 2^42507801 is an apocalyptic number.

It is an amenable number.

42507801 is a deficient number, since it is larger than the sum of its proper divisors (29463399).

42507801 is a wasteful number, since it uses less digits than its factorization.

42507801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224925 (or 224919 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 42507801 is about 6519.8006871376. The cubic root of 42507801 is about 348.9979529331.

The spelling of 42507801 in words is "forty-two million, five hundred seven thousand, eight hundred one".