20410052531 has 4 divisors (see below), whose sum is σ = 22265511864. Its totient is φ = 18554593200.

The previous prime is 20410052503. The next prime is 20410052557. The reversal of 20410052531 is 13525001402.

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

It is not a de Polignac number, because 20410052531 - 2¹⁰ = 20410051507 is a prime.

It is a super-2 number, since 2×20410052531² (a number of 21 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 = 20410052497 and 20410052506.

It is not an unprimeable number, because it can be changed into a prime (20410052231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927729650 + ... + 927729671.

It is an arithmetic number, because the mean of its divisors is an integer number (5566377966).

Almost surely, 2^20410052531 is an apocalyptic number.

20410052531 is a deficient number, since it is larger than the sum of its proper divisors (1855459333).

20410052531 is a wasteful number, since it uses less digits than its factorization.

20410052531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855459332.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 20410052531 its reverse (13525001402), we get a palindrome (33935053933).

The spelling of 20410052531 in words is "twenty billion, four hundred ten million, fifty-two thousand, five hundred thirty-one".