42453507 has 4 divisors (see below), whose sum is σ = 56604680. Its totient is φ = 28302336.

The previous prime is 42453503. The next prime is 42453517. The reversal of 42453507 is 70535424.

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

It is not a de Polignac number, because 42453507 - 2² = 42453503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42453503) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7075582 + ... + 7075587.

It is an arithmetic number, because the mean of its divisors is an integer number (14151170).

Almost surely, 2^42453507 is an apocalyptic number.

42453507 is a deficient number, since it is larger than the sum of its proper divisors (14151173).

42453507 is a wasteful number, since it uses less digits than its factorization.

42453507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14151172.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 42453507 is about 6515.6355791281. The cubic root of 42453507 is about 348.8493012535.

The spelling of 42453507 in words is "forty-two million, four hundred fifty-three thousand, five hundred seven".