525731461 has 4 divisors (see below), whose sum is σ = 527104512. Its totient is φ = 524358412.

The previous prime is 525731419. The next prime is 525731497. The reversal of 525731461 is 164137525.

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 525731461 - 2⁹ = 525730949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525731761) 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, 685951 + ... + 686716.

It is an arithmetic number, because the mean of its divisors is an integer number (131776128).

Almost surely, 2^525731461 is an apocalyptic number.

It is an amenable number.

525731461 is a deficient number, since it is larger than the sum of its proper divisors (1373051).

525731461 is a wasteful number, since it uses less digits than its factorization.

525731461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373050.

The product of its digits is 25200, while the sum is 34.

The square root of 525731461 is about 22928.8347065436. The cubic root of 525731461 is about 807.0888031599.

Adding to 525731461 its reverse (164137525), we get a palindrome (689868986).

The spelling of 525731461 in words is "five hundred twenty-five million, seven hundred thirty-one thousand, four hundred sixty-one".