1054722521 has 2 divisors, whose sum is σ = 1054722522. Its totient is φ = 1054722520.

The previous prime is 1054722503. The next prime is 1054722587. The reversal of 1054722521 is 1252274501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 963233296 + 91489225 = 31036^2 + 9565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054722521 - 2¹⁴ = 1054706137 is a prime.

It is a super-2 number, since 2×1054722521² = 2224879192609190882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1054722121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527361260 + 527361261.

It is an arithmetic number, because the mean of its divisors is an integer number (527361261).

Almost surely, 2^1054722521 is an apocalyptic number.

It is an amenable number.

1054722521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054722521 is an equidigital number, since it uses as much as digits as its factorization.

1054722521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 1054722521 is about 32476.4918210080. The cubic root of 1054722521 is about 1017.9178726607.

The spelling of 1054722521 in words is "one billion, fifty-four million, seven hundred twenty-two thousand, five hundred twenty-one".