42552387 has 6 divisors (see below), whose sum is σ = 61464572. Its totient is φ = 28368252.

The previous prime is 42552379. The next prime is 42552397. The reversal of 42552387 is 78325524.

It is not a de Polignac number, because 42552387 - 2³ = 42552379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42552347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2364013 + ... + 2364030.

Almost surely, 2^42552387 is an apocalyptic number.

42552387 is a deficient number, since it is larger than the sum of its proper divisors (18912185).

42552387 is a wasteful number, since it uses less digits than its factorization.

42552387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728049 (or 4728046 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 42552387 is about 6523.2190673011. The cubic root of 42552387 is about 349.1199304301.

The spelling of 42552387 in words is "forty-two million, five hundred fifty-two thousand, three hundred eighty-seven".