55177107421 has 8 divisors (see below), whose sum is σ = 57081661184. Its totient is φ = 53280344160.

The previous prime is 55177107409. The next prime is 55177107437. The reversal of 55177107421 is 12470177155.

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 55177107421 - 2⁹ = 55177106909 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 (55177107221) 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, 1933215 + ... + 1961548.

It is an arithmetic number, because the mean of its divisors is an integer number (7135207648).

Almost surely, 2^55177107421 is an apocalyptic number.

It is an amenable number.

55177107421 is a deficient number, since it is larger than the sum of its proper divisors (1904553763).

55177107421 is a wasteful number, since it uses less digits than its factorization.

55177107421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895251.

The product of its (nonzero) digits is 68600, while the sum is 40.

The spelling of 55177107421 in words is "fifty-five billion, one hundred seventy-seven million, one hundred seven thousand, four hundred twenty-one".