1553011120 has 40 divisors (see below), whose sum is σ = 3698825760. Its totient is φ = 606051840.

The previous prime is 1553011069. The next prime is 1553011121. The reversal of 1553011120 is 211103551.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1553011121) 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, 233460 + ... + 240019.

It is an arithmetic number, because the mean of its divisors is an integer number (92470644).

Almost surely, 2^1553011120 is an apocalyptic number.

1553011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1553011120 is an abundant number, since it is smaller than the sum of its proper divisors (2145814640).

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

1553011120 is a wasteful number, since it uses less digits than its factorization.

1553011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473533 (or 473527 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1553011120 is about 39408.2620778943. The cubic root of 1553011120 is about 1158.0434516862.

Adding to 1553011120 its reverse (211103551), we get a palindrome (1764114671).

The spelling of 1553011120 in words is "one billion, five hundred fifty-three million, eleven thousand, one hundred twenty".