55251671 has 4 divisors (see below), whose sum is σ = 56188200. Its totient is φ = 54315144.

The previous prime is 55251653. The next prime is 55251737. The reversal of 55251671 is 17615255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55251671 - 2¹⁴ = 55235287 is a prime.

It is a super-3 number, since 3×55251671³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55251631) 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, 468176 + ... + 468293.

It is an arithmetic number, because the mean of its divisors is an integer number (14047050).

Almost surely, 2^55251671 is an apocalyptic number.

55251671 is a deficient number, since it is larger than the sum of its proper divisors (936529).

55251671 is an equidigital number, since it uses as much as digits as its factorization.

55251671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936528.

The product of its digits is 10500, while the sum is 32.

The square root of 55251671 is about 7433.1467764332. The cubic root of 55251671 is about 380.8744198429.

The spelling of 55251671 in words is "fifty-five million, two hundred fifty-one thousand, six hundred seventy-one".