42553660 has 24 divisors (see below), whose sum is σ = 91442736. Its totient is φ = 16625280.

The previous prime is 42553649. The next prime is 42553681. The reversal of 42553660 is 6635524.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23881 + ... + 25600.

It is an arithmetic number, because the mean of its divisors is an integer number (3810114).

Almost surely, 2^42553660 is an apocalyptic number.

It is an amenable number.

42553660 is an abundant number, since it is smaller than the sum of its proper divisors (48889076).

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

42553660 is a wasteful number, since it uses less digits than its factorization.

42553660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49533 (or 49531 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 42553660 is about 6523.3166410960. The cubic root of 42553660 is about 349.1234118270.

The spelling of 42553660 in words is "forty-two million, five hundred fifty-three thousand, six hundred sixty".