1553291472 has 20 divisors (see below), whose sum is σ = 4012669760. Its totient is φ = 517763808.

The previous prime is 1553291449. The next prime is 1553291473. The reversal of 1553291472 is 2741923551.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1553291472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553291473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16180072 + ... + 16180167.

It is an arithmetic number, because the mean of its divisors is an integer number (200633488).

Almost surely, 2^1553291472 is an apocalyptic number.

1553291472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1553291472 is an abundant number, since it is smaller than the sum of its proper divisors (2459378288).

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

1553291472 is a wasteful number, since it uses less digits than its factorization.

1553291472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32360250 (or 32360244 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 1553291472 is about 39411.8189379785. The cubic root of 1553291472 is about 1158.1131314328.

The spelling of 1553291472 in words is "one billion, five hundred fifty-three million, two hundred ninety-one thousand, four hundred seventy-two".