31472055553 has 4 divisors (see below), whose sum is σ = 31609488340. Its totient is φ = 31334622768.

The previous prime is 31472055493. The next prime is 31472055617. The reversal of 31472055553 is 35555027413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28428657664 + 3043397889 = 168608^2 + 55167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31472055553 is a prime.

It is a super-2 number, since 2×31472055553² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31472050553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68716050 + ... + 68716507.

It is an arithmetic number, because the mean of its divisors is an integer number (7902372085).

Almost surely, 2^31472055553 is an apocalyptic number.

It is an amenable number.

31472055553 is a deficient number, since it is larger than the sum of its proper divisors (137432787).

31472055553 is a wasteful number, since it uses less digits than its factorization.

31472055553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137432786.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 31472055553 in words is "thirty-one billion, four hundred seventy-two million, fifty-five thousand, five hundred fifty-three".