55172965 has 8 divisors (see below), whose sum is σ = 67330080. Its totient is φ = 43390032.

The previous prime is 55172917. The next prime is 55172977. The reversal of 55172965 is 56927155.

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 55172965 - 2¹⁹ = 54648677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93219 + ... + 93808.

It is an arithmetic number, because the mean of its divisors is an integer number (8416260).

Almost surely, 2^55172965 is an apocalyptic number.

It is an amenable number.

55172965 is a deficient number, since it is larger than the sum of its proper divisors (12157115).

55172965 is a wasteful number, since it uses less digits than its factorization.

55172965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187091.

The product of its digits is 94500, while the sum is 40.

The square root of 55172965 is about 7427.8506312392. The cubic root of 55172965 is about 380.6934820423.

The spelling of 55172965 in words is "fifty-five million, one hundred seventy-two thousand, nine hundred sixty-five".