51325951 has 2 divisors, whose sum is σ = 51325952. Its totient is φ = 51325950.

The previous prime is 51325943. The next prime is 51325979. The reversal of 51325951 is 15952315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51325951 - 2³ = 51325943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51325921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25662975 + 25662976.

It is an arithmetic number, because the mean of its divisors is an integer number (25662976).

Almost surely, 2^51325951 is an apocalyptic number.

51325951 is a deficient number, since it is larger than the sum of its proper divisors (1).

51325951 is an equidigital number, since it uses as much as digits as its factorization.

51325951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6750, while the sum is 31.

The square root of 51325951 is about 7164.2132156993. The cubic root of 51325951 is about 371.6313431633.

The spelling of 51325951 in words is "fifty-one million, three hundred twenty-five thousand, nine hundred fifty-one".