53908549 has 2 divisors, whose sum is σ = 53908550. Its totient is φ = 53908548.

The previous prime is 53908531. The next prime is 53908553. The reversal of 53908549 is 94580935.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52099524 + 1809025 = 7218^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 53908549 - 2²³ = 45519941 is a prime.

It is a super-2 number, since 2×53908549² = 5812263310570802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53908559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26954274 + 26954275.

It is an arithmetic number, because the mean of its divisors is an integer number (26954275).

Almost surely, 2^53908549 is an apocalyptic number.

It is an amenable number.

53908549 is a deficient number, since it is larger than the sum of its proper divisors (1).

53908549 is an equidigital number, since it uses as much as digits as its factorization.

53908549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 53908549 is about 7342.2441392261. The cubic root of 53908549 is about 377.7628221075.

The spelling of 53908549 in words is "fifty-three million, nine hundred eight thousand, five hundred forty-nine".