51148051 has 2 divisors, whose sum is σ = 51148052. Its totient is φ = 51148050.

The previous prime is 51148039. The next prime is 51148061. The reversal of 51148051 is 15084115.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51148051 - 2⁹ = 51147539 is a prime.

It is a super-2 number, since 2×51148051² = 5232246242197202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51148061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25574025 + 25574026.

It is an arithmetic number, because the mean of its divisors is an integer number (25574026).

Almost surely, 2^51148051 is an apocalyptic number.

51148051 is a deficient number, since it is larger than the sum of its proper divisors (1).

51148051 is an equidigital number, since it uses as much as digits as its factorization.

51148051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 51148051 is about 7151.7865600142. The cubic root of 51148051 is about 371.2014777852.

The spelling of 51148051 in words is "fifty-one million, one hundred forty-eight thousand, fifty-one".