254375621 has 2 divisors, whose sum is σ = 254375622. Its totient is φ = 254375620.

The previous prime is 254375599. The next prime is 254375623. The reversal of 254375621 is 126573452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252969025 + 1406596 = 15905^2 + 1186^2 .

It is a cyclic number.

It is not a de Polignac number, because 254375621 - 2⁶ = 254375557 is a prime.

Together with 254375623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254375623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127187810 + 127187811.

It is an arithmetic number, because the mean of its divisors is an integer number (127187811).

Almost surely, 2^254375621 is an apocalyptic number.

It is an amenable number.

254375621 is a deficient number, since it is larger than the sum of its proper divisors (1).

254375621 is an equidigital number, since it uses as much as digits as its factorization.

254375621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 254375621 is about 15949.1573758616. The cubic root of 254375621 is about 633.6145801349.

The spelling of 254375621 in words is "two hundred fifty-four million, three hundred seventy-five thousand, six hundred twenty-one".