254620823 has 2 divisors, whose sum is σ = 254620824. Its totient is φ = 254620822.

The previous prime is 254620819. The next prime is 254620859. The reversal of 254620823 is 328026452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254620823 - 2² = 254620819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254620823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254620123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127310411 + 127310412.

It is an arithmetic number, because the mean of its divisors is an integer number (127310412).

Almost surely, 2^254620823 is an apocalyptic number.

254620823 is a deficient number, since it is larger than the sum of its proper divisors (1).

254620823 is an equidigital number, since it uses as much as digits as its factorization.

254620823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 254620823 is about 15956.8425134799. The cubic root of 254620823 is about 633.8181028731.

The spelling of 254620823 in words is "two hundred fifty-four million, six hundred twenty thousand, eight hundred twenty-three".