51878953 has 8 divisors (see below), whose sum is σ = 59878080. Its totient is φ = 44026800.

The previous prime is 51878947. The next prime is 51878963. The reversal of 51878953 is 35987815.

51878953 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 a cyclic number.

It is not a de Polignac number, because 51878953 - 2²¹ = 49781801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51878933) 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, 35983 + ... + 37396.

It is an arithmetic number, because the mean of its divisors is an integer number (7484760).

Almost surely, 2^51878953 is an apocalyptic number.

It is an amenable number.

51878953 is a deficient number, since it is larger than the sum of its proper divisors (7999127).

51878953 is a wasteful number, since it uses less digits than its factorization.

51878953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73487.

The product of its digits is 302400, while the sum is 46.

The square root of 51878953 is about 7202.7045614824. The cubic root of 51878953 is about 372.9612693291.

The spelling of 51878953 in words is "fifty-one million, eight hundred seventy-eight thousand, nine hundred fifty-three".