42552523 has 16 divisors (see below), whose sum is σ = 46922400. Its totient is φ = 38352384.

The previous prime is 42552473. The next prime is 42552527. The reversal of 42552523 is 32525524.

It is a cyclic number.

It is not a de Polignac number, because 42552523 - 2⁹ = 42552011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42552491 and 42552500.

It is not an unprimeable number, because it can be changed into a prime (42552527) 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, 121753 + ... + 122101.

It is an arithmetic number, because the mean of its divisors is an integer number (2932650).

Almost surely, 2^42552523 is an apocalyptic number.

42552523 is a deficient number, since it is larger than the sum of its proper divisors (4369877).

42552523 is a wasteful number, since it uses less digits than its factorization.

42552523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its digits is 12000, while the sum is 28.

The square root of 42552523 is about 6523.2294915939. The cubic root of 42552523 is about 349.1203023658.

The spelling of 42552523 in words is "forty-two million, five hundred fifty-two thousand, five hundred twenty-three".