42501501 has 48 divisors (see below), whose sum is σ = 74405760. Its totient is φ = 22861440.

The previous prime is 42501497. The next prime is 42501521. The reversal of 42501501 is 10510524.

It is not a de Polignac number, because 42501501 - 2² = 42501497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78291 + ... + 78831.

It is an arithmetic number, because the mean of its divisors is an integer number (1550120).

Almost surely, 2^42501501 is an apocalyptic number.

It is an amenable number.

42501501 is a deficient number, since it is larger than the sum of its proper divisors (31904259).

42501501 is a wasteful number, since it uses less digits than its factorization.

42501501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 42501501 is about 6519.3175256310. The cubic root of 42501501 is about 348.9807106412.

The spelling of 42501501 in words is "forty-two million, five hundred one thousand, five hundred one".