51472761 has 8 divisors (see below), whose sum is σ = 68803104. Its totient is φ = 34228800.

The previous prime is 51472739. The next prime is 51472769. The reversal of 51472761 is 16727415.

51472761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51472761 - 2⁶ = 51472697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51472769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20191 + ... + 22596.

It is an arithmetic number, because the mean of its divisors is an integer number (8600388).

Almost surely, 2^51472761 is an apocalyptic number.

It is an amenable number.

51472761 is a deficient number, since it is larger than the sum of its proper divisors (17330343).

51472761 is a wasteful number, since it uses less digits than its factorization.

51472761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43191.

The product of its digits is 11760, while the sum is 33.

The square root of 51472761 is about 7174.4519651329. The cubic root of 51472761 is about 371.9853373224.

The spelling of 51472761 in words is "fifty-one million, four hundred seventy-two thousand, seven hundred sixty-one".