54962821 has 2 divisors, whose sum is σ = 54962822. Its totient is φ = 54962820.

The previous prime is 54962779. The next prime is 54962827. The reversal of 54962821 is 12826945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50253921 + 4708900 = 7089^2 + 2170^2 .

It is a cyclic number.

It is not a de Polignac number, because 54962821 - 2¹³ = 54954629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54962827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27481410 + 27481411.

It is an arithmetic number, because the mean of its divisors is an integer number (27481411).

Almost surely, 2^54962821 is an apocalyptic number.

It is an amenable number.

54962821 is a deficient number, since it is larger than the sum of its proper divisors (1).

54962821 is an equidigital number, since it uses as much as digits as its factorization.

54962821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 54962821 is about 7413.6914556785. The cubic root of 54962821 is about 380.2095358698.

The spelling of 54962821 in words is "fifty-four million, nine hundred sixty-two thousand, eight hundred twenty-one".