55916552505 has 32 divisors (see below), whose sum is σ = 98368339968. Its totient is φ = 26897572800.

The previous prime is 55916552491. The next prime is 55916552543. The reversal of 55916552505 is 50525561955.

It is not a de Polignac number, because 55916552505 - 2⁶ = 55916552441 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 1313251 + ... + 1355160.

It is an arithmetic number, because the mean of its divisors is an integer number (3074010624).

Almost surely, 2^55916552505 is an apocalyptic number.

55916552505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55916552505 is a deficient number, since it is larger than the sum of its proper divisors (42451787463).

55916552505 is a wasteful number, since it uses less digits than its factorization.

55916552505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668557.

The product of its (nonzero) digits is 1687500, while the sum is 48.

The spelling of 55916552505 in words is "fifty-five billion, nine hundred sixteen million, five hundred fifty-two thousand, five hundred five".