55651671 has 8 divisors (see below), whose sum is σ = 82446960. Its totient is φ = 37101096.

The previous prime is 55651669. The next prime is 55651679. The reversal of 55651671 is 17615655.

It is not a de Polignac number, because 55651671 - 2¹ = 55651669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651679) 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, 1030560 + ... + 1030613.

It is an arithmetic number, because the mean of its divisors is an integer number (10305870).

Almost surely, 2^55651671 is an apocalyptic number.

55651671 is a deficient number, since it is larger than the sum of its proper divisors (26795289).

55651671 is a wasteful number, since it uses less digits than its factorization.

55651671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061182 (or 2061176 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 55651671 is about 7460.0047587116. The cubic root of 55651671 is about 381.7913368417.

The spelling of 55651671 in words is "fifty-five million, six hundred fifty-one thousand, six hundred seventy-one".