525401293 has 4 divisors (see below), whose sum is σ = 530603388. Its totient is φ = 520199200.

The previous prime is 525401287. The next prime is 525401311. The reversal of 525401293 is 392104525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243765769 + 281635524 = 15613^2 + 16782^2 .

It is a cyclic number.

It is not a de Polignac number, because 525401293 - 2²¹ = 523304141 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525401263) 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, 2600896 + ... + 2601097.

It is an arithmetic number, because the mean of its divisors is an integer number (132650847).

Almost surely, 2^525401293 is an apocalyptic number.

It is an amenable number.

525401293 is a deficient number, since it is larger than the sum of its proper divisors (5202095).

525401293 is a wasteful number, since it uses less digits than its factorization.

525401293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202094.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 525401293 is about 22921.6337332224. The cubic root of 525401293 is about 806.9198127667.

The spelling of 525401293 in words is "five hundred twenty-five million, four hundred one thousand, two hundred ninety-three".