31225775005 has 32 divisors (see below), whose sum is σ = 38954949120. Its totient is φ = 24009592320.

The previous prime is 31225774999. The next prime is 31225775033. The reversal of 31225775005 is 50057752213.

It is not a de Polignac number, because 31225775005 - 2⁵ = 31225774973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5344876 + ... + 5350714.

It is an arithmetic number, because the mean of its divisors is an integer number (1217342160).

Almost surely, 2^31225775005 is an apocalyptic number.

It is an amenable number.

31225775005 is a deficient number, since it is larger than the sum of its proper divisors (7729174115).

31225775005 is a wasteful number, since it uses less digits than its factorization.

31225775005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229.

The product of its (nonzero) digits is 73500, while the sum is 37.

The spelling of 31225775005 in words is "thirty-one billion, two hundred twenty-five million, seven hundred seventy-five thousand, five".