253222631550 has 144 divisors (see below), whose sum is σ = 784781592192. Its totient is φ = 57338452800.

The previous prime is 253222631533. The next prime is 253222631569. The reversal of 253222631550 is 55136222352.

253222631550 is a `hidden beast` number, since 2 + 53 + 2 + 2 + 26 + 31 + 550 = 666.

It is a super-2 number, since 2×253222631550² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 38596 + ... + 712695.

It is an arithmetic number, because the mean of its divisors is an integer number (5449872168).

Almost surely, 2^253222631550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253222631550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392390796096).

253222631550 is an abundant number, since it is smaller than the sum of its proper divisors (531558960642).

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

253222631550 is a wasteful number, since it uses less digits than its factorization.

253222631550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751423 (or 751415 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 253222631550 in words is "two hundred fifty-three billion, two hundred twenty-two million, six hundred thirty-one thousand, five hundred fifty".