51125258 has 16 divisors (see below), whose sum is σ = 78114696. Its totient is φ = 25090560.

The previous prime is 51125201. The next prime is 51125279. The reversal of 51125258 is 85252115.

It can be written as a sum of positive squares in 4 ways, for example, as 50737129 + 388129 = 7123^2 + 623^2 .

It is a super-2 number, since 2×51125258² = 5227584011133128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51125258.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34460 + ... + 35912.

Almost surely, 2^51125258 is an apocalyptic number.

51125258 is a deficient number, since it is larger than the sum of its proper divisors (26989438).

51125258 is a wasteful number, since it uses less digits than its factorization.

51125258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769.

The product of its digits is 4000, while the sum is 29.

The square root of 51125258 is about 7150.1928645317. The cubic root of 51125258 is about 371.1463303441.

The spelling of 51125258 in words is "fifty-one million, one hundred twenty-five thousand, two hundred fifty-eight".