51532304477 has 2 divisors, whose sum is σ = 51532304478. Its totient is φ = 51532304476.

The previous prime is 51532304437. The next prime is 51532304501. The reversal of 51532304477 is 77440323515.

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., 51520374361 + 11930116 = 226981^2 + 3454^2 .

It is a cyclic number.

It is not a de Polignac number, because 51532304477 - 2¹⁰ = 51532303453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51532304407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766152238 + 25766152239.

It is an arithmetic number, because the mean of its divisors is an integer number (25766152239).

Almost surely, 2^51532304477 is an apocalyptic number.

It is an amenable number.

51532304477 is a deficient number, since it is larger than the sum of its proper divisors (1).

51532304477 is an equidigital number, since it uses as much as digits as its factorization.

51532304477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 51532304477 in words is "fifty-one billion, five hundred thirty-two million, three hundred four thousand, four hundred seventy-seven".