42555501 has 12 divisors (see below), whose sum is σ = 61644960. Its totient is φ = 28289160.

The previous prime is 42555493. The next prime is 42555517. The reversal of 42555501 is 10555524.

It is not a de Polignac number, because 42555501 - 2³ = 42555493 is a prime.

It is a super-2 number, since 2×42555501² = 3621941330722002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3355 + ... + 9816.

It is an arithmetic number, because the mean of its divisors is an integer number (5137080).

Almost surely, 2^42555501 is an apocalyptic number.

It is an amenable number.

42555501 is a deficient number, since it is larger than the sum of its proper divisors (19089459).

42555501 is a wasteful number, since it uses less digits than its factorization.

42555501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536 (or 13533 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 42555501 is about 6523.4577487710. The cubic root of 42555501 is about 349.1284464658.

The spelling of 42555501 in words is "forty-two million, five hundred fifty-five thousand, five hundred one".