625725931011 has 16 divisors (see below), whose sum is σ = 834802913280. Its totient is φ = 416899866240.

The previous prime is 625725931009. The next prime is 625725931027. The reversal of 625725931011 is 110139527526.

It is a happy number.

It is not a de Polignac number, because 625725931011 - 2¹ = 625725931009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625725931091) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 66286830 + ... + 66296268.

It is an arithmetic number, because the mean of its divisors is an integer number (52175182080).

Almost surely, 2^625725931011 is an apocalyptic number.

625725931011 is a deficient number, since it is larger than the sum of its proper divisors (209076982269).

625725931011 is a wasteful number, since it uses less digits than its factorization.

625725931011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20386.

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 625725931011 in words is "six hundred twenty-five billion, seven hundred twenty-five million, nine hundred thirty-one thousand, eleven".