31450555212553 has 4 divisors (see below), whose sum is σ = 31450995687748. Its totient is φ = 31450114737360.

The previous prime is 31450555212539. The next prime is 31450555212563. The reversal of 31450555212553 is 35521255505413.

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 10755953259129 + 20694601953424 = 3279627^2 + 4549132^2 .

It is a cyclic number.

It is not a de Polignac number, because 31450555212553 - 2⁵ = 31450555212521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31450555212523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220130478 + ... + 220273303.

It is an arithmetic number, because the mean of its divisors is an integer number (7862748921937).

Almost surely, 2^{31450555212553} is an apocalyptic number.

It is an amenable number.

31450555212553 is a deficient number, since it is larger than the sum of its proper divisors (440475195).

31450555212553 is an equidigital number, since it uses as much as digits as its factorization.

31450555212553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440475194.

The product of its (nonzero) digits is 2250000, while the sum is 46.

The spelling of 31450555212553 in words is "thirty-one trillion, four hundred fifty billion, five hundred fifty-five million, two hundred twelve thousand, five hundred fifty-three".