48905172 has 18 divisors (see below), whose sum is σ = 123621498. Its totient is φ = 16301712.

The previous prime is 48905137. The next prime is 48905179. The reversal of 48905172 is 27150984.

48905172 is a `hidden beast` number, since 489 + 0 + 5 + 172 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45643536 + 3261636 = 6756^2 + 1806^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1358477 = 48905172 / (4 + 8 + 9 + 0 + 5 + 1 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48905179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 679203 + ... + 679274.

It is an arithmetic number, because the mean of its divisors is an integer number (6867861).

Almost surely, 2^48905172 is an apocalyptic number.

It is an amenable number.

48905172 is an abundant number, since it is smaller than the sum of its proper divisors (74716326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48905172 is a wasteful number, since it uses less digits than its factorization.

48905172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358487 (or 1358482 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 48905172 is about 6993.2232911584. The cubic root of 48905172 is about 365.6943609808.

The spelling of 48905172 in words is "forty-eight million, nine hundred five thousand, one hundred seventy-two".