2054621057 has 2 divisors, whose sum is σ = 2054621058. Its totient is φ = 2054621056.

The previous prime is 2054621053. The next prime is 2054621081. The reversal of 2054621057 is 7501264502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1654781041 + 399840016 = 40679^2 + 19996^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054621057 - 2² = 2054621053 is a prime.

It is not a weakly prime, because it can be changed into another prime (2054621053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027310528 + 1027310529.

It is an arithmetic number, because the mean of its divisors is an integer number (1027310529).

Almost surely, 2^2054621057 is an apocalyptic number.

It is an amenable number.

2054621057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054621057 is an equidigital number, since it uses as much as digits as its factorization.

2054621057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 2054621057 is about 45327.9280025019. The cubic root of 2054621057 is about 1271.2878945424.

Adding to 2054621057 its reverse (7501264502), we get a palindrome (9555885559).

The spelling of 2054621057 in words is "two billion, fifty-four million, six hundred twenty-one thousand, fifty-seven".