55978696703 has 4 divisors (see below), whose sum is σ = 55982053680. Its totient is φ = 55975339728.

The previous prime is 55978696649. The next prime is 55978696729. The reversal of 55978696703 is 30769687955.

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

It is a cyclic number.

It is not a de Polignac number, because 55978696703 - 2¹⁸ = 55978434559 is a prime.

It is a super-2 number, since 2×55978696703² (a number of 22 digits) contains 22 as substring.

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 55978696703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55978696793) 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, 1653350 + ... + 1686867.

It is an arithmetic number, because the mean of its divisors is an integer number (13995513420).

Almost surely, 2^55978696703 is an apocalyptic number.

55978696703 is a deficient number, since it is larger than the sum of its proper divisors (3356977).

55978696703 is a wasteful number, since it uses less digits than its factorization.

55978696703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356976.

The product of its (nonzero) digits is 85730400, while the sum is 65.

The spelling of 55978696703 in words is "fifty-five billion, nine hundred seventy-eight million, six hundred ninety-six thousand, seven hundred three".