253220555554 has 8 divisors (see below), whose sum is σ = 381127185180. Its totient is φ = 126178160496.

The previous prime is 253220555537. The next prime is 253220555569. The reversal of 253220555554 is 455555022352.

It can be written as a sum of positive squares in 2 ways, for example, as 249865018225 + 3355537329 = 499865^2 + 57927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253220555554.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216057909 + ... + 216059080.

Almost surely, 2^253220555554 is an apocalyptic number.

253220555554 is a deficient number, since it is larger than the sum of its proper divisors (127906629626).

253220555554 is a wasteful number, since it uses less digits than its factorization.

253220555554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432117284.

The product of its (nonzero) digits is 1500000, while the sum is 43.

The spelling of 253220555554 in words is "two hundred fifty-three billion, two hundred twenty million, five hundred fifty-five thousand, five hundred fifty-four".