531403552045 has 8 divisors (see below), whose sum is σ = 653237537400. Its totient is φ = 414753991680.

The previous prime is 531403551949. The next prime is 531403552051. The reversal of 531403552045 is 540255304135.

It can be written as a sum of positive squares in 4 ways, for example, as 30044675556 + 501358876489 = 173334^2 + 708067^2 .

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

It is not a de Polignac number, because 531403552045 - 2¹⁵ = 531403519277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531403551995 and 531403552013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296106020 + ... + 1296106429.

It is an arithmetic number, because the mean of its divisors is an integer number (81654692175).

Almost surely, 2^531403552045 is an apocalyptic number.

It is an amenable number.

531403552045 is a deficient number, since it is larger than the sum of its proper divisors (121833985355).

531403552045 is a wasteful number, since it uses less digits than its factorization.

531403552045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592212495.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 531403552045 in words is "five hundred thirty-one billion, four hundred three million, five hundred fifty-two thousand, forty-five".