31949065225 has 24 divisors (see below), whose sum is σ = 49392427968. Its totient is φ = 19916299200.

The previous prime is 31949065219. The next prime is 31949065237. The reversal of 31949065225 is 52256094913.

It is not a de Polignac number, because 31949065225 - 2⁹ = 31949064713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8296534 + ... + 8300383.

It is an arithmetic number, because the mean of its divisors is an integer number (2058017832).

Almost surely, 2^31949065225 is an apocalyptic number.

31949065225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31949065225 is a deficient number, since it is larger than the sum of its proper divisors (17443362743).

31949065225 is a wasteful number, since it uses less digits than its factorization.

31949065225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16596945 (or 16596940 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 31949065225 in words is "thirty-one billion, nine hundred forty-nine million, sixty-five thousand, two hundred twenty-five".