51151049 has 2 divisors, whose sum is σ = 51151050. Its totient is φ = 51151048.

The previous prime is 51151033. The next prime is 51151063. The reversal of 51151049 is 94015115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 21557449 = 5440^2 + 4643^2 .

It is a cyclic number.

It is not a de Polignac number, because 51151049 - 2⁴ = 51151033 is a prime.

It is not a weakly prime, because it can be changed into another prime (51151069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25575524 + 25575525.

It is an arithmetic number, because the mean of its divisors is an integer number (25575525).

Almost surely, 2^51151049 is an apocalyptic number.

It is an amenable number.

51151049 is a deficient number, since it is larger than the sum of its proper divisors (1).

51151049 is an equidigital number, since it uses as much as digits as its factorization.

51151049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 51151049 is about 7151.9961549207. The cubic root of 51151049 is about 371.2087301976.

It can be divided in two parts, 5115 and 1049, that multiplied together give a palindrome (5365635).

The spelling of 51151049 in words is "fifty-one million, one hundred fifty-one thousand, forty-nine".