52531543501 has 12 divisors (see below), whose sum is σ = 55657703772. Its totient is φ = 49572993024.

The previous prime is 52531543499. The next prime is 52531543507. The reversal of 52531543501 is 10534513525.

It can be written as a sum of positive squares in 2 ways, for example, as 32896527876 + 19635015625 = 181374^2 + 140125^2 .

It is not a de Polignac number, because 52531543501 - 2¹ = 52531543499 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 (52531543507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190330 + ... + 375883.

It is an arithmetic number, because the mean of its divisors is an integer number (4638141981).

Almost surely, 2^52531543501 is an apocalyptic number.

It is an amenable number.

52531543501 is a deficient number, since it is larger than the sum of its proper divisors (3126160271).

52531543501 is a wasteful number, since it uses less digits than its factorization.

52531543501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566508 (or 566489 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 52531543501 in words is "fifty-two billion, five hundred thirty-one million, five hundred forty-three thousand, five hundred one".