254224220261 has 32 divisors (see below), whose sum is σ = 298498867200. Its totient is φ = 214035151680.

The previous prime is 254224220197. The next prime is 254224220273. The reversal of 254224220261 is 162022422452.

It is a cyclic number.

It is not a de Polignac number, because 254224220261 - 2⁶ = 254224220197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254224226261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8462255 + ... + 8492243.

It is an arithmetic number, because the mean of its divisors is an integer number (9328089600).

Almost surely, 2^254224220261 is an apocalyptic number.

It is an amenable number.

254224220261 is a deficient number, since it is larger than the sum of its proper divisors (44274646939).

254224220261 is a wasteful number, since it uses less digits than its factorization.

254224220261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30929.

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 254224220261 in words is "two hundred fifty-four billion, two hundred twenty-four million, two hundred twenty thousand, two hundred sixty-one".