55221410525 has 12 divisors (see below), whose sum is σ = 69597084564. Its totient is φ = 43452912000.

The previous prime is 55221410477. The next prime is 55221410557. The reversal of 55221410525 is 52501412255.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3691048516 + 51530362009 = 60754^2 + 227003^2 .

It is not a de Polignac number, because 55221410525 - 2²² = 55217216221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55221410491 and 55221410500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18103856 + ... + 18106905.

It is an arithmetic number, because the mean of its divisors is an integer number (5799757047).

Almost surely, 2^55221410525 is an apocalyptic number.

It is an amenable number.

55221410525 is a deficient number, since it is larger than the sum of its proper divisors (14375674039).

55221410525 is a wasteful number, since it uses less digits than its factorization.

55221410525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36210832 (or 36210827 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 55221410525 in words is "fifty-five billion, two hundred twenty-one million, four hundred ten thousand, five hundred twenty-five".