54421501501 has 2 divisors, whose sum is σ = 54421501502. Its totient is φ = 54421501500.

The previous prime is 54421501493. The next prime is 54421501571. The reversal of 54421501501 is 10510512445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41385799225 + 13035702276 = 203435^2 + 114174^2 .

It is a cyclic number.

It is not a de Polignac number, because 54421501501 - 2³ = 54421501493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54421501501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54421501571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27210750750 + 27210750751.

It is an arithmetic number, because the mean of its divisors is an integer number (27210750751).

Almost surely, 2^54421501501 is an apocalyptic number.

It is an amenable number.

54421501501 is a deficient number, since it is larger than the sum of its proper divisors (1).

54421501501 is an equidigital number, since it uses as much as digits as its factorization.

54421501501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 54421501501 in words is "fifty-four billion, four hundred twenty-one million, five hundred one thousand, five hundred one".