253012545550 has 96 divisors (see below), whose sum is σ = 493988382720. Its totient is φ = 96333494400.

The previous prime is 253012545529. The next prime is 253012545553. The reversal of 253012545550 is 55545210352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253012545553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12428380 + ... + 12448720.

It is an arithmetic number, because the mean of its divisors is an integer number (5145712320).

Almost surely, 2^253012545550 is an apocalyptic number.

253012545550 is a deficient number, since it is larger than the sum of its proper divisors (240975837170).

253012545550 is a wasteful number, since it uses less digits than its factorization.

253012545550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20546 (or 20541 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 37.

The spelling of 253012545550 in words is "two hundred fifty-three billion, twelve million, five hundred forty-five thousand, five hundred fifty".