42555064 has 64 divisors (see below), whose sum is σ = 87494400. Its totient is φ = 19353600.

The previous prime is 42555061. The next prime is 42555067. The reversal of 42555064 is 46055524.

It is an interprime number because it is at equal distance from previous prime (42555061) and next prime (42555067).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42555061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438664 + ... + 438760.

It is an arithmetic number, because the mean of its divisors is an integer number (1367100).

Almost surely, 2^42555064 is an apocalyptic number.

It is an amenable number.

42555064 is an abundant number, since it is smaller than the sum of its proper divisors (44939336).

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

42555064 is a wasteful number, since it uses less digits than its factorization.

42555064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 42555064 is about 6523.4242541782. The cubic root of 42555064 is about 349.1272514017.

The spelling of 42555064 in words is "forty-two million, five hundred fifty-five thousand, sixty-four".