54862121 has 2 divisors, whose sum is σ = 54862122. Its totient is φ = 54862120.

The previous prime is 54862099. The next prime is 54862147. The reversal of 54862121 is 12126845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34386496 + 20475625 = 5864^2 + 4525^2 .

It is a cyclic number.

It is not a de Polignac number, because 54862121 - 2⁶ = 54862057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54822121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27431060 + 27431061.

It is an arithmetic number, because the mean of its divisors is an integer number (27431061).

Almost surely, 2^54862121 is an apocalyptic number.

It is an amenable number.

54862121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54862121 is an equidigital number, since it uses as much as digits as its factorization.

54862121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 29.

The square root of 54862121 is about 7406.8968536088. The cubic root of 54862121 is about 379.9771939222.

Adding to 54862121 its reverse (12126845), we get a palindrome (66988966).

The spelling of 54862121 in words is "fifty-four million, eight hundred sixty-two thousand, one hundred twenty-one".