1553855472 has 60 divisors (see below), whose sum is σ = 4683153384. Its totient is φ = 478108800.

The previous prime is 1553855461. The next prime is 1553855483. The reversal of 1553855472 is 2745583551.

1553855472 is a `hidden beast` number, since 1 + 553 + 8 + 55 + 47 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1553855461) and next prime (1553855483).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413154 + ... + 416897.

Almost surely, 2^1553855472 is an apocalyptic number.

1553855472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1553855472 is an abundant number, since it is smaller than the sum of its proper divisors (3129297912).

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

1553855472 is a wasteful number, since it uses less digits than its factorization.

1553855472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830078 (or 830069 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 1553855472 is about 39418.9735026167. The cubic root of 1553855472 is about 1158.2532847304.

The spelling of 1553855472 in words is "one billion, five hundred fifty-three million, eight hundred fifty-five thousand, four hundred seventy-two".