51695070 has 32 divisors (see below), whose sum is σ = 141792768. Its totient is φ = 11815968.

The previous prime is 51695051. The next prime is 51695071. The reversal of 51695070 is 7059615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51695071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122874 + ... + 123293.

It is an arithmetic number, because the mean of its divisors is an integer number (4431024).

Almost surely, 2^51695070 is an apocalyptic number.

51695070 is an abundant number, since it is smaller than the sum of its proper divisors (90097698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51695070 is a wasteful number, since it uses less digits than its factorization.

51695070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246184.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 51695070 is about 7189.9283723831. The cubic root of 51695070 is about 372.5200986107.

The spelling of 51695070 in words is "fifty-one million, six hundred ninety-five thousand, seventy".