55720350035503 has 4 divisors (see below), whose sum is σ = 55721176164808. Its totient is φ = 55719523906200.

The previous prime is 55720350035491. The next prime is 55720350035521. The reversal of 55720350035503 is 30553005302755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55720350035503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55720350035503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55720350035543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412963473 + ... + 413098378.

It is an arithmetic number, because the mean of its divisors is an integer number (13930294041202).

Almost surely, 2^{55720350035503} is an apocalyptic number.

55720350035503 is a deficient number, since it is larger than the sum of its proper divisors (826129305).

55720350035503 is an equidigital number, since it uses as much as digits as its factorization.

55720350035503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826129304.

The product of its (nonzero) digits is 1181250, while the sum is 43.

The spelling of 55720350035503 in words is "fifty-five trillion, seven hundred twenty billion, three hundred fifty million, thirty-five thousand, five hundred three".