42510524501 has 4 divisors (see below), whose sum is σ = 43547366604. Its totient is φ = 41473682400.

The previous prime is 42510524477. The next prime is 42510524509. The reversal of 42510524501 is 10542501524.

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 9564644401 + 32945880100 = 97799^2 + 181510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42510524501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42510524509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518420990 + ... + 518421071.

It is an arithmetic number, because the mean of its divisors is an integer number (10886841651).

Almost surely, 2^42510524501 is an apocalyptic number.

42510524501 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

42510524501 is a deficient number, since it is larger than the sum of its proper divisors (1036842103).

42510524501 is a wasteful number, since it uses less digits than its factorization.

42510524501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036842102.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 42510524501 in words is "forty-two billion, five hundred ten million, five hundred twenty-four thousand, five hundred one".