42075550 has 48 divisors (see below), whose sum is σ = 86257872. Its totient is φ = 15142400.

The previous prime is 42075511. The next prime is 42075559. The reversal of 42075550 is 5557024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42075559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61812 + ... + 62488.

It is an arithmetic number, because the mean of its divisors is an integer number (1797039).

Almost surely, 2^42075550 is an apocalyptic number.

42075550 is an abundant number, since it is smaller than the sum of its proper divisors (44182322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42075550 is a wasteful number, since it uses less digits than its factorization.

42075550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 42075550 is about 6486.5668885783. The cubic root of 42075550 is about 347.8109633030.

The spelling of 42075550 in words is "forty-two million, seventy-five thousand, five hundred fifty".