51907965 has 8 divisors (see below), whose sum is σ = 83052768. Its totient is φ = 27684240.

The previous prime is 51907963. The next prime is 51907967. The reversal of 51907965 is 56970915.

51907965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51907963) and next prime (51907967).

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

It is not a de Polignac number, because 51907965 - 2¹ = 51907963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51907963) 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, 1730251 + ... + 1730280.

It is an arithmetic number, because the mean of its divisors is an integer number (10381596).

Almost surely, 2^51907965 is an apocalyptic number.

It is an amenable number.

51907965 is a deficient number, since it is larger than the sum of its proper divisors (31144803).

51907965 is a wasteful number, since it uses less digits than its factorization.

51907965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460539.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 51907965 is about 7204.7182457054. The cubic root of 51907965 is about 373.0307794442.

The spelling of 51907965 in words is "fifty-one million, nine hundred seven thousand, nine hundred sixty-five".