55509225739 has 8 divisors (see below), whose sum is σ = 60558385968. Its totient is φ = 50460543360.

The previous prime is 55509225719. The next prime is 55509225763. The reversal of 55509225739 is 93752290555.

55509225739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55509225739 - 2⁹ = 55509225227 is a prime.

It is a super-2 number, since 2×55509225739² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55509225719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149839 + ... + 365335.

It is an arithmetic number, because the mean of its divisors is an integer number (7569798246).

Almost surely, 2^55509225739 is an apocalyptic number.

55509225739 is a deficient number, since it is larger than the sum of its proper divisors (5049160229).

55509225739 is a wasteful number, since it uses less digits than its factorization.

55509225739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238925.

The product of its (nonzero) digits is 4252500, while the sum is 52.

The spelling of 55509225739 in words is "fifty-five billion, five hundred nine million, two hundred twenty-five thousand, seven hundred thirty-nine".