531425400511 has 8 divisors (see below), whose sum is σ = 538719077664. Its totient is φ = 524132098560.

The previous prime is 531425400491. The next prime is 531425400523. The reversal of 531425400511 is 115004524135.

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

It is a cyclic number.

It is not a de Polignac number, because 531425400511 - 2¹³ = 531425392319 is a prime.

It is a super-2 number, since 2×531425400511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531425400581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3939990 + ... + 4072636.

It is an arithmetic number, because the mean of its divisors is an integer number (67339884708).

Almost surely, 2^531425400511 is an apocalyptic number.

531425400511 is a deficient number, since it is larger than the sum of its proper divisors (7293677153).

531425400511 is a wasteful number, since it uses less digits than its factorization.

531425400511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187601.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 531425400511 its reverse (115004524135), we get a palindrome (646429924646).

The spelling of 531425400511 in words is "five hundred thirty-one billion, four hundred twenty-five million, four hundred thousand, five hundred eleven".