531053401 has 4 divisors (see below), whose sum is σ = 559003600. Its totient is φ = 503103204.

The previous prime is 531053399. The next prime is 531053431. The reversal of 531053401 is 104350135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 531053401 - 2¹ = 531053399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531053431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13975071 + ... + 13975108.

It is an arithmetic number, because the mean of its divisors is an integer number (139750900).

Almost surely, 2^531053401 is an apocalyptic number.

It is an amenable number.

531053401 is a deficient number, since it is larger than the sum of its proper divisors (27950199).

531053401 is a wasteful number, since it uses less digits than its factorization.

531053401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27950198.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 531053401 is about 23044.5959174814. The cubic root of 531053401 is about 809.8030314138.

The spelling of 531053401 in words is "five hundred thirty-one million, fifty-three thousand, four hundred one".