531401042535 has 64 divisors (see below), whose sum is σ = 982897680384. Its totient is φ = 242295552000.

The previous prime is 531401042531. The next prime is 531401042563. The reversal of 531401042535 is 535240104135.

It is not a de Polignac number, because 531401042535 - 2² = 531401042531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 531401042496 and 531401042505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531401042531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3393210 + ... + 3546360.

It is an arithmetic number, because the mean of its divisors is an integer number (15357776256).

Almost surely, 2^531401042535 is an apocalyptic number.

531401042535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

531401042535 is a deficient number, since it is larger than the sum of its proper divisors (451496637849).

531401042535 is a wasteful number, since it uses less digits than its factorization.

531401042535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154424.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 531401042535 in words is "five hundred thirty-one billion, four hundred one million, forty-two thousand, five hundred thirty-five".