51070090 has 8 divisors (see below), whose sum is σ = 91926180. Its totient is φ = 20428032.

The previous prime is 51070067. The next prime is 51070139. The reversal of 51070090 is 9007015.

It can be written as a sum of positive squares in 2 ways, for example, as 42549529 + 8520561 = 6523^2 + 2919^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553495 + ... + 2553514.

Almost surely, 2^51070090 is an apocalyptic number.

51070090 is a deficient number, since it is larger than the sum of its proper divisors (40856090).

51070090 is a wasteful number, since it uses less digits than its factorization.

51070090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107016.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 51070090 is about 7146.3340252188. The cubic root of 51070090 is about 371.0127840253.

The spelling of 51070090 in words is "fifty-one million, seventy thousand, ninety".