1553353533552 has 40 divisors (see below), whose sum is σ = 4027009608064. Its totient is φ = 515954879424.

The previous prime is 1553353533551. The next prime is 1553353533559. The reversal of 1553353533552 is 2553353533551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553353533551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57162268 + ... + 57189435.

Almost surely, 2^{1553353533552} is an apocalyptic number.

1553353533552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1553353533552 is an abundant number, since it is smaller than the sum of its proper divisors (2473656074512).

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

1553353533552 is a wasteful number, since it uses less digits than its factorization.

1553353533552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114351997 (or 114351991 counting only the distinct ones).

The product of its digits is 7593750, while the sum is 48.

Subtracting 1553353533552 from its reverse (2553353533551), we obtain a palindrome (999999999999).

The spelling of 1553353533552 in words is "one trillion, five hundred fifty-three billion, three hundred fifty-three million, five hundred thirty-three thousand, five hundred fifty-two".