42546525 has 24 divisors (see below), whose sum is σ = 80393664. Its totient is φ = 19449600.

The previous prime is 42546523. The next prime is 42546533. The reversal of 42546525 is 52564524.

42546525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42546525 - 2¹ = 42546523 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42546523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39996 + ... + 41045.

It is an arithmetic number, because the mean of its divisors is an integer number (3349736).

Almost surely, 2^42546525 is an apocalyptic number.

It is an amenable number.

42546525 is a deficient number, since it is larger than the sum of its proper divisors (37847139).

42546525 is a wasteful number, since it uses less digits than its factorization.

42546525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81061 (or 81056 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 42546525 is about 6522.7697337864. The cubic root of 42546525 is about 349.1038981527.

It can be divided in two parts, 42546 and 525, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 42546525 in words is "forty-two million, five hundred forty-six thousand, five hundred twenty-five".