51025057 has 2 divisors, whose sum is σ = 51025058. Its totient is φ = 51025056.

The previous prime is 51025049. The next prime is 51025081. The reversal of 51025057 is 75052015.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34058896 + 16966161 = 5836^2 + 4119^2 .

It is a cyclic number.

It is not a de Polignac number, because 51025057 - 2³ = 51025049 is a prime.

It is not a weakly prime, because it can be changed into another prime (51025087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25512528 + 25512529.

It is an arithmetic number, because the mean of its divisors is an integer number (25512529).

Almost surely, 2^51025057 is an apocalyptic number.

It is an amenable number.

51025057 is a deficient number, since it is larger than the sum of its proper divisors (1).

51025057 is an equidigital number, since it uses as much as digits as its factorization.

51025057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 51025057 is about 7143.1825540161. The cubic root of 51025057 is about 370.9037003978.

The spelling of 51025057 in words is "fifty-one million, twenty-five thousand, fifty-seven".