45172655 has 16 divisors (see below), whose sum is σ = 62614944. Its totient is φ = 30919680.

The previous prime is 45172651. The next prime is 45172657. The reversal of 45172655 is 55627154.

It is not a de Polignac number, because 45172655 - 2² = 45172651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45172651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23222 + ... + 25091.

It is an arithmetic number, because the mean of its divisors is an integer number (3913434).

Almost surely, 2^45172655 is an apocalyptic number.

45172655 is a deficient number, since it is larger than the sum of its proper divisors (17442289).

45172655 is a wasteful number, since it uses less digits than its factorization.

45172655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48346.

The product of its digits is 42000, while the sum is 35.

The square root of 45172655 is about 6721.0605561920. The cubic root of 45172655 is about 356.1436502084.

The spelling of 45172655 in words is "forty-five million, one hundred seventy-two thousand, six hundred fifty-five".