41001521531 has 4 divisors (see below), whose sum is σ = 41247039792. Its totient is φ = 40756003272.

The previous prime is 41001521521. The next prime is 41001521543. The reversal of 41001521531 is 13512510014.

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

It is a cyclic number.

It is not a de Polignac number, because 41001521531 - 2⁶ = 41001521467 is a prime.

It is a super-2 number, since 2×41001521531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41001521497 and 41001521506.

It is not an unprimeable number, because it can be changed into a prime (41001521521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122758880 + ... + 122759213.

It is an arithmetic number, because the mean of its divisors is an integer number (10311759948).

Almost surely, 2^41001521531 is an apocalyptic number.

41001521531 is a deficient number, since it is larger than the sum of its proper divisors (245518261).

41001521531 is a wasteful number, since it uses less digits than its factorization.

41001521531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245518260.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 41001521531 in words is "forty-one billion, one million, five hundred twenty-one thousand, five hundred thirty-one".