731525473 has 4 divisors (see below), whose sum is σ = 836029120. Its totient is φ = 627021828.

The previous prime is 731525471. The next prime is 731525477. The reversal of 731525473 is 374525137.

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 a cyclic number.

It is not a de Polignac number, because 731525473 - 2¹ = 731525471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731525471) 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, 52251813 + ... + 52251826.

It is an arithmetic number, because the mean of its divisors is an integer number (209007280).

Almost surely, 2^731525473 is an apocalyptic number.

It is an amenable number.

731525473 is a deficient number, since it is larger than the sum of its proper divisors (104503647).

731525473 is a wasteful number, since it uses less digits than its factorization.

731525473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104503646.

The product of its digits is 88200, while the sum is 37.

The square root of 731525473 is about 27046.7275839426. The cubic root of 731525473 is about 901.0380914691.

The spelling of 731525473 in words is "seven hundred thirty-one million, five hundred twenty-five thousand, four hundred seventy-three".