42549522 has 8 divisors (see below), whose sum is σ = 85099056. Its totient is φ = 14183172.

The previous prime is 42549511. The next prime is 42549527. The reversal of 42549522 is 22594524.

It is a sphenic number, since it is the product of 3 distinct primes.

42549522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42549527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3545788 + ... + 3545799.

It is an arithmetic number, because the mean of its divisors is an integer number (10637382).

Almost surely, 2^42549522 is an apocalyptic number.

42549522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42549522 is a wasteful number, since it uses less digits than its factorization.

42549522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091592.

The product of its digits is 28800, while the sum is 33.

The square root of 42549522 is about 6522.9994634370. Note that the first 3 decimals coincide. The cubic root of 42549522 is about 349.1120949821.

It can be divided in two parts, 42549 and 522, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 42549522 in words is "forty-two million, five hundred forty-nine thousand, five hundred twenty-two".