55172035 has 4 divisors (see below), whose sum is σ = 66206448. Its totient is φ = 44137624.

The previous prime is 55172027. The next prime is 55172063. The reversal of 55172035 is 53027155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53027155 = 5 ⋅10605431.

It is a cyclic number.

It is not a de Polignac number, because 55172035 - 2³ = 55172027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55171994 and 55172012.

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, 5517199 + ... + 5517208.

It is an arithmetic number, because the mean of its divisors is an integer number (16551612).

Almost surely, 2^55172035 is an apocalyptic number.

55172035 is a deficient number, since it is larger than the sum of its proper divisors (11034413).

55172035 is a wasteful number, since it uses less digits than its factorization.

55172035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11034412.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55172035 is about 7427.7880287472. The cubic root of 55172035 is about 380.6913430301.

The spelling of 55172035 in words is "fifty-five million, one hundred seventy-two thousand, thirty-five".