1553250542250 has 128 divisors (see below), whose sum is σ = 4231450679040. Its totient is φ = 376359456000.

The previous prime is 1553250542197. The next prime is 1553250542267. The reversal of 1553250542250 is 522450523551.

It is a junction number, because it is equal to n+sod(n) for n = 1553250542199 and 1553250542208.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17023752 + ... + 17114748.

It is an arithmetic number, because the mean of its divisors is an integer number (33058208430).

Almost surely, 2^{1553250542250} is an apocalyptic number.

1553250542250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553250542250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115725339520).

1553250542250 is an abundant number, since it is smaller than the sum of its proper divisors (2678200136790).

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

1553250542250 is a wasteful number, since it uses less digits than its factorization.

1553250542250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93097 (or 93087 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 1553250542250 in words is "one trillion, five hundred fifty-three billion, two hundred fifty million, five hundred forty-two thousand, two hundred fifty".