254526661 has 4 divisors (see below), whose sum is σ = 254560000. Its totient is φ = 254493324.

The previous prime is 254526631. The next prime is 254526677. The reversal of 254526661 is 166625452.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 254526661 - 2⁹ = 254526149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254526661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254526631) 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, 1090 + ... + 22588.

It is an arithmetic number, because the mean of its divisors is an integer number (63640000).

Almost surely, 2^254526661 is an apocalyptic number.

It is an amenable number.

254526661 is a deficient number, since it is larger than the sum of its proper divisors (33339).

254526661 is a wasteful number, since it uses less digits than its factorization.

254526661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33338.

The product of its digits is 86400, while the sum is 37.

The square root of 254526661 is about 15953.8917195774. The cubic root of 254526661 is about 633.7399619235.

The spelling of 254526661 in words is "two hundred fifty-four million, five hundred twenty-six thousand, six hundred sixty-one".