1553045312 has 56 divisors (see below), whose sum is σ = 3793028736. Its totient is φ = 614389248.

The previous prime is 1553045309. The next prime is 1553045317. The reversal of 1553045312 is 2135403551.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1553045312² = 4823899482250354688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553045317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127508 + ... + 139155.

It is an arithmetic number, because the mean of its divisors is an integer number (67732656).

Almost surely, 2^1553045312 is an apocalyptic number.

It is an amenable number.

1553045312 is an abundant number, since it is smaller than the sum of its proper divisors (2239983424).

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

1553045312 is a wasteful number, since it uses less digits than its factorization.

1553045312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266695 (or 266685 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1553045312 is about 39408.6958931655. The cubic root of 1553045312 is about 1158.0519503442.

Adding to 1553045312 its reverse (2135403551), we get a palindrome (3688448863).

The spelling of 1553045312 in words is "one billion, five hundred fifty-three million, forty-five thousand, three hundred twelve".