253530523531 has 8 divisors (see below), whose sum is σ = 256506169680. Its totient is φ = 250571182848.

The previous prime is 253530523523. The next prime is 253530523559. The reversal of 253530523531 is 135325035352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253530523531 - 2³ = 253530523523 is a prime.

It is a super-2 number, since 2×253530523531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253530523591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4045086 + ... + 4107283.

It is an arithmetic number, because the mean of its divisors is an integer number (32063271210).

Almost surely, 2^253530523531 is an apocalyptic number.

253530523531 is a deficient number, since it is larger than the sum of its proper divisors (2975646149).

253530523531 is a wasteful number, since it uses less digits than its factorization.

253530523531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8152733.

The product of its (nonzero) digits is 202500, while the sum is 37.

Adding to 253530523531 its reverse (135325035352), we get a palindrome (388855558883).

The spelling of 253530523531 in words is "two hundred fifty-three billion, five hundred thirty million, five hundred twenty-three thousand, five hundred thirty-one".