253420440500550 has 48 divisors (see below), whose sum is σ = 628486829036352. Its totient is φ = 67578339338400.

The previous prime is 253420440500419. The next prime is 253420440500677. The reversal of 253420440500550 is 55005044024352.

It is a junction number, because it is equal to n+sod(n) for n = 253420440500499 and 253420440500508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17627145 + ... + 28592955.

It is an arithmetic number, because the mean of its divisors is an integer number (13093475604924).

Almost surely, 2^{253420440500550} is an apocalyptic number.

253420440500550 is an abundant number, since it is smaller than the sum of its proper divisors (375066388535802).

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

253420440500550 is a wasteful number, since it uses less digits than its factorization.

253420440500550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119893 (or 11119888 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 39.

The spelling of 253420440500550 in words is "two hundred fifty-three trillion, four hundred twenty billion, four hundred forty million, five hundred thousand, five hundred fifty".