51552533401 has 2 divisors, whose sum is σ = 51552533402. Its totient is φ = 51552533400.

The previous prime is 51552533353. The next prime is 51552533441. The reversal of 51552533401 is 10433525515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47646158400 + 3906375001 = 218280^2 + 62501^2 .

It is a cyclic number.

It is not a de Polignac number, because 51552533401 - 2²³ = 51544144793 is a prime.

It is a super-2 number, since 2×51552533401² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51552533441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776266700 + 25776266701.

It is an arithmetic number, because the mean of its divisors is an integer number (25776266701).

Almost surely, 2^51552533401 is an apocalyptic number.

It is an amenable number.

51552533401 is a deficient number, since it is larger than the sum of its proper divisors (1).

51552533401 is an equidigital number, since it uses as much as digits as its factorization.

51552533401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 51552533401 in words is "fifty-one billion, five hundred fifty-two million, five hundred thirty-three thousand, four hundred one".