55171502 has 8 divisors (see below), whose sum is σ = 83891136. Its totient is φ = 27207792.

The previous prime is 55171499. The next prime is 55171531. The reversal of 55171502 is 20517155.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188798 + ... + 189089.

It is an arithmetic number, because the mean of its divisors is an integer number (10486392).

Almost surely, 2^55171502 is an apocalyptic number.

55171502 is a deficient number, since it is larger than the sum of its proper divisors (28719634).

55171502 is a wasteful number, since it uses less digits than its factorization.

55171502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377962.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 55171502 is about 7427.7521498768. The cubic root of 55171502 is about 380.6901171123.

Adding to 55171502 its reverse (20517155), we get a palindrome (75688657).

The spelling of 55171502 in words is "fifty-five million, one hundred seventy-one thousand, five hundred two".