55503785636 has 12 divisors (see below), whose sum is σ = 104603288412. Its totient is φ = 25617131808.

The previous prime is 55503785599. The next prime is 55503785651. The reversal of 55503785636 is 63658730555.

It can be written as a sum of positive squares in 2 ways, for example, as 36712859236 + 18790926400 = 191606^2 + 137080^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533690195 + ... + 533690298.

It is an arithmetic number, because the mean of its divisors is an integer number (8716940701).

Almost surely, 2^55503785636 is an apocalyptic number.

It is an amenable number.

55503785636 is a deficient number, since it is larger than the sum of its proper divisors (49099502776).

55503785636 is a wasteful number, since it uses less digits than its factorization.

55503785636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067380510 (or 1067380508 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 53.

The spelling of 55503785636 in words is "fifty-five billion, five hundred three million, seven hundred eighty-five thousand, six hundred thirty-six".