42651523 has 8 divisors (see below), whose sum is σ = 45022400. Its totient is φ = 40293288.

The previous prime is 42651517. The next prime is 42651527. The reversal of 42651523 is 32515624.

42651523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42651523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42651491 and 42651500.

It is not an unprimeable number, because it can be changed into a prime (42651527) 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 7 ways as a sum of consecutive naturals, for example, 4240 + ... + 10162.

It is an arithmetic number, because the mean of its divisors is an integer number (5627800).

Almost surely, 2^42651523 is an apocalyptic number.

42651523 is a deficient number, since it is larger than the sum of its proper divisors (2370877).

42651523 is a wasteful number, since it uses less digits than its factorization.

42651523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6321.

The product of its digits is 7200, while the sum is 28.

The square root of 42651523 is about 6530.8133490401. The cubic root of 42651523 is about 349.3908397170.

The spelling of 42651523 in words is "forty-two million, six hundred fifty-one thousand, five hundred twenty-three".