254764621 has 4 divisors (see below), whose sum is σ = 256597600. Its totient is φ = 252931644.

The previous prime is 254764613. The next prime is 254764663. The reversal of 254764621 is 126467452.

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 254764621 - 2³ = 254764613 is a prime.

It is a super-2 number, since 2×254764621² = 129810024226547282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254764691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916281 + ... + 916558.

It is an arithmetic number, because the mean of its divisors is an integer number (64149400).

Almost surely, 2^254764621 is an apocalyptic number.

It is an amenable number.

254764621 is a deficient number, since it is larger than the sum of its proper divisors (1832979).

254764621 is a wasteful number, since it uses less digits than its factorization.

254764621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832978.

The product of its digits is 80640, while the sum is 37.

The square root of 254764621 is about 15961.3477187862. The cubic root of 254764621 is about 633.9373974151.

The spelling of 254764621 in words is "two hundred fifty-four million, seven hundred sixty-four thousand, six hundred twenty-one".