51023020541 has 2 divisors, whose sum is σ = 51023020542. Its totient is φ = 51023020540.

The previous prime is 51023020519. The next prime is 51023020549. The reversal of 51023020541 is 14502032015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32430607225 + 18592413316 = 180085^2 + 136354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51023020541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51023020549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25511510270 + 25511510271.

It is an arithmetic number, because the mean of its divisors is an integer number (25511510271).

Almost surely, 2^51023020541 is an apocalyptic number.

It is an amenable number.

51023020541 is a deficient number, since it is larger than the sum of its proper divisors (1).

51023020541 is an equidigital number, since it uses as much as digits as its factorization.

51023020541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 51023020541 its reverse (14502032015), we get a palindrome (65525052556).

The spelling of 51023020541 in words is "fifty-one billion, twenty-three million, twenty thousand, five hundred forty-one".