254540531 has 4 divisors (see below), whose sum is σ = 290903472. Its totient is φ = 218177592.

The previous prime is 254540519. The next prime is 254540567. The reversal of 254540531 is 135045452.

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

It is a cyclic number.

It is not a de Polignac number, because 254540531 - 2²² = 250346227 is a prime.

It is a super-2 number, since 2×254540531² = 129581763843523922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254540494 and 254540503.

It is not an unprimeable number, because it can be changed into a prime (254540581) 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, 18181460 + ... + 18181473.

It is an arithmetic number, because the mean of its divisors is an integer number (72725868).

Almost surely, 2^254540531 is an apocalyptic number.

254540531 is a deficient number, since it is larger than the sum of its proper divisors (36362941).

254540531 is an equidigital number, since it uses as much as digits as its factorization.

254540531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36362940.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 254540531 is about 15954.3264038317. The cubic root of 254540531 is about 633.7514732436.

Adding to 254540531 its reverse (135045452), we get a palindrome (389585983).

The spelling of 254540531 in words is "two hundred fifty-four million, five hundred forty thousand, five hundred thirty-one".