51662251153 has 2 divisors, whose sum is σ = 51662251154. Its totient is φ = 51662251152.

The previous prime is 51662251097. The next prime is 51662251181. The reversal of 51662251153 is 35115226615.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47033898129 + 4628353024 = 216873^2 + 68032^2 .

It is a cyclic number.

It is not a de Polignac number, because 51662251153 - 2³³ = 43072316561 is a prime.

It is not a weakly prime, because it can be changed into another prime (51662251253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25831125576 + 25831125577.

It is an arithmetic number, because the mean of its divisors is an integer number (25831125577).

Almost surely, 2^51662251153 is an apocalyptic number.

It is an amenable number.

51662251153 is a deficient number, since it is larger than the sum of its proper divisors (1).

51662251153 is an equidigital number, since it uses as much as digits as its factorization.

51662251153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 37.

Adding to 51662251153 its reverse (35115226615), we get a palindrome (86777477768).

The spelling of 51662251153 in words is "fifty-one billion, six hundred sixty-two million, two hundred fifty-one thousand, one hundred fifty-three".