55647451797 has 16 divisors (see below), whose sum is σ = 84829079040. Its totient is φ = 31786183152.

The previous prime is 55647451793. The next prime is 55647451799. The reversal of 55647451797 is 79715474655.

It is not a de Polignac number, because 55647451797 - 2² = 55647451793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55647451797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55647451793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459583 + ... + 567900.

It is an arithmetic number, because the mean of its divisors is an integer number (5301817440).

Almost surely, 2^55647451797 is an apocalyptic number.

It is an amenable number.

55647451797 is a deficient number, since it is larger than the sum of its proper divisors (29181627243).

55647451797 is a wasteful number, since it uses less digits than its factorization.

55647451797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030072.

The product of its digits is 37044000, while the sum is 60.

The spelling of 55647451797 in words is "fifty-five billion, six hundred forty-seven million, four hundred fifty-one thousand, seven hundred ninety-seven".