82620750825555 has 32 divisors (see below), whose sum is σ = 132747965760000. Its totient is φ = 43879865432832.

The previous prime is 82620750825499. The next prime is 82620750825577. The reversal of 82620750825555 is 55552805702628.

It is not a de Polignac number, because 82620750825555 - 2¹⁰ = 82620750824531 is a prime.

It is a super-4 number, since 4×82620750825555⁴ (a number of 57 digits) contains 4444 as substring.

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, 8656135 + ... + 15497424.

It is an arithmetic number, because the mean of its divisors is an integer number (4148373930000).

Almost surely, 2^{82620750825555} is an apocalyptic number.

82620750825555 is a deficient number, since it is larger than the sum of its proper divisors (50127214934445).

82620750825555 is a wasteful number, since it uses less digits than its factorization.

82620750825555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24154523.

The product of its (nonzero) digits is 67200000, while the sum is 60.

The spelling of 82620750825555 in words is "eighty-two trillion, six hundred twenty billion, seven hundred fifty million, eight hundred twenty-five thousand, five hundred fifty-five".