51290770 has 8 divisors (see below), whose sum is σ = 92323404. Its totient is φ = 20516304.

The previous prime is 51290761. The next prime is 51290773. The reversal of 51290770 is 7709215.

It can be written as a sum of positive squares in 2 ways, for example, as 51222649 + 68121 = 7157^2 + 261^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51290773) 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 3 ways as a sum of consecutive naturals, for example, 2564529 + ... + 2564548.

Almost surely, 2^51290770 is an apocalyptic number.

51290770 is a deficient number, since it is larger than the sum of its proper divisors (41032634).

51290770 is a wasteful number, since it uses less digits than its factorization.

51290770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129084.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 51290770 is about 7161.7574658739. The cubic root of 51290770 is about 371.5464130879.

Adding to 51290770 its reverse (7709215), we get a palindrome (58999985).

The spelling of 51290770 in words is "fifty-one million, two hundred ninety thousand, seven hundred seventy".