51095870 has 16 divisors (see below), whose sum is σ = 105111648. Its totient is φ = 17518560.

The previous prime is 51095851. The next prime is 51095873. The reversal of 51095870 is 7859015.

It is a super-2 number, since 2×51095870² = 5221575862113800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 51095870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51095873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364901 + ... + 365040.

It is an arithmetic number, because the mean of its divisors is an integer number (6569478).

Almost surely, 2^51095870 is an apocalyptic number.

51095870 is an abundant number, since it is smaller than the sum of its proper divisors (54015778).

51095870 is a wasteful number, since it uses less digits than its factorization.

51095870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729955.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 51095870 is about 7148.1375196620. The cubic root of 51095870 is about 371.0752021688.

The spelling of 51095870 in words is "fifty-one million, ninety-five thousand, eight hundred seventy".