253552420447550 has 48 divisors (see below), whose sum is σ = 538981375594272. Its totient is φ = 86932036944000.

The previous prime is 253552420447519. The next prime is 253552420447553. The reversal of 253552420447550 is 55744024255352.

It is a super-2 number, since 2×253552420447550² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253552420447492 and 253552420447501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253552420447553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197495504 + ... + 198775196.

It is an arithmetic number, because the mean of its divisors is an integer number (11228778658214).

Almost surely, 2^{253552420447550} is an apocalyptic number.

253552420447550 is an abundant number, since it is smaller than the sum of its proper divisors (285428955146722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253552420447550 is a wasteful number, since it uses less digits than its factorization.

253552420447550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845813 (or 1845808 counting only the distinct ones).

The product of its (nonzero) digits is 33600000, while the sum is 53.

The spelling of 253552420447550 in words is "two hundred fifty-three trillion, five hundred fifty-two billion, four hundred twenty million, four hundred forty-seven thousand, five hundred fifty".