55739297739 has 32 divisors (see below), whose sum is σ = 77154301440. Its totient is φ = 35772751872.

The previous prime is 55739297717. The next prime is 55739297743. The reversal of 55739297739 is 93779293755.

It is not a de Polignac number, because 55739297739 - 2⁹ = 55739297227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55739297739.

It is not an unprimeable number, because it can be changed into a prime (55739297239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2727642 + ... + 2748000.

It is an arithmetic number, because the mean of its divisors is an integer number (2411071920).

Almost surely, 2^55739297739 is an apocalyptic number.

55739297739 is a deficient number, since it is larger than the sum of its proper divisors (21415003701).

55739297739 is a wasteful number, since it uses less digits than its factorization.

55739297739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20739.

The product of its digits is 112521150, while the sum is 66.

The spelling of 55739297739 in words is "fifty-five billion, seven hundred thirty-nine million, two hundred ninety-seven thousand, seven hundred thirty-nine".