42607553 has 4 divisors (see below), whose sum is σ = 42625620. Its totient is φ = 42589488.

The previous prime is 42607517. The next prime is 42607561. The reversal of 42607553 is 35570624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13630864 + 28976689 = 3692^2 + 5383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42607553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42607573) 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, 4850 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (10656405).

Almost surely, 2^42607553 is an apocalyptic number.

It is an amenable number.

42607553 is a deficient number, since it is larger than the sum of its proper divisors (18067).

42607553 is a wasteful number, since it uses less digits than its factorization.

42607553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18066.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 42607553 is about 6527.4461315280. The cubic root of 42607553 is about 349.2707346080.

The spelling of 42607553 in words is "forty-two million, six hundred seven thousand, five hundred fifty-three".