51395607 has 16 divisors (see below), whose sum is σ = 80621280. Its totient is φ = 32247936.

The previous prime is 51395599. The next prime is 51395609. The reversal of 51395607 is 70659315.

It is a happy number.

It is not a de Polignac number, because 51395607 - 2³ = 51395599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51395609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55528 + ... + 56445.

It is an arithmetic number, because the mean of its divisors is an integer number (5038830).

Almost surely, 2^51395607 is an apocalyptic number.

51395607 is a deficient number, since it is larger than the sum of its proper divisors (29225673).

51395607 is a wasteful number, since it uses less digits than its factorization.

51395607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111999 (or 111993 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 51395607 is about 7169.0729526209. The cubic root of 51395607 is about 371.7993845457.

The spelling of 51395607 in words is "fifty-one million, three hundred ninety-five thousand, six hundred seven".