51625061 has 2 divisors, whose sum is σ = 51625062. Its totient is φ = 51625060.

The previous prime is 51625051. The next prime is 51625081. The reversal of 51625061 is 16052615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47748100 + 3876961 = 6910^2 + 1969^2 .

It is a cyclic number.

It is not a de Polignac number, because 51625061 - 2¹⁸ = 51362917 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51625061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51625031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25812530 + 25812531.

It is an arithmetic number, because the mean of its divisors is an integer number (25812531).

Almost surely, 2^51625061 is an apocalyptic number.

It is an amenable number.

51625061 is a deficient number, since it is larger than the sum of its proper divisors (1).

51625061 is an equidigital number, since it uses as much as digits as its factorization.

51625061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 51625061 is about 7185.0581765216. The cubic root of 51625061 is about 372.3518585739.

Adding to 51625061 its reverse (16052615), we get a palindrome (67677676).

The spelling of 51625061 in words is "fifty-one million, six hundred twenty-five thousand, sixty-one".