1553111020050 has 48 divisors (see below), whose sum is σ = 3852826944960. Its totient is φ = 414043410240.

The previous prime is 1553111020009. The next prime is 1553111020061. The reversal of 1553111020050 is 500201113551.

It is a self number, because there is not a number n which added to its sum of digits gives 1553111020050.

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, 972022 + ... + 2012721.

It is an arithmetic number, because the mean of its divisors is an integer number (80267228020).

Almost surely, 2^{1553111020050} is an apocalyptic number.

1553111020050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1553111020050 is an abundant number, since it is smaller than the sum of its proper divisors (2299715924910).

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

1553111020050 is a wasteful number, since it uses less digits than its factorization.

1553111020050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988227 (or 2988222 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 1553111020050 in words is "one trillion, five hundred fifty-three billion, one hundred eleven million, twenty thousand, fifty".