55527404389 has 4 divisors (see below), whose sum is σ = 55528542720. Its totient is φ = 55526266060.

The previous prime is 55527404363. The next prime is 55527404431. The reversal of 55527404389 is 98340472555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55527404389 - 2³³ = 46937469797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55527404329) 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, 492559 + ... + 594700.

It is an arithmetic number, because the mean of its divisors is an integer number (13882135680).

Almost surely, 2^55527404389 is an apocalyptic number.

It is an amenable number.

55527404389 is a deficient number, since it is larger than the sum of its proper divisors (1138331).

55527404389 is a wasteful number, since it uses less digits than its factorization.

55527404389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138330.

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 55527404389 in words is "fifty-five billion, five hundred twenty-seven million, four hundred four thousand, three hundred eighty-nine".