51960947 has 4 divisors (see below), whose sum is σ = 52128336. Its totient is φ = 51793560.

The previous prime is 51960941. The next prime is 51960967. The reversal of 51960947 is 74906915.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51960947 - 2¹⁶ = 51895411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51960941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83228 + ... + 83849.

It is an arithmetic number, because the mean of its divisors is an integer number (13032084).

Almost surely, 2^51960947 is an apocalyptic number.

51960947 is a deficient number, since it is larger than the sum of its proper divisors (167389).

51960947 is a wasteful number, since it uses less digits than its factorization.

51960947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167388.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 51960947 is about 7208.3942039819. The cubic root of 51960947 is about 373.1576526917.

The spelling of 51960947 in words is "fifty-one million, nine hundred sixty thousand, nine hundred forty-seven".