53554261 has 2 divisors, whose sum is σ = 53554262. Its totient is φ = 53554260.

The previous prime is 53554243. The next prime is 53554273. The reversal of 53554261 is 16245535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47527236 + 6027025 = 6894^2 + 2455^2 .

It is a cyclic number.

It is not a de Polignac number, because 53554261 - 2¹⁵ = 53521493 is a prime.

It is a super-2 number, since 2×53554261² = 5736117742512242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53554201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26777130 + 26777131.

It is an arithmetic number, because the mean of its divisors is an integer number (26777131).

Almost surely, 2^53554261 is an apocalyptic number.

It is an amenable number.

53554261 is a deficient number, since it is larger than the sum of its proper divisors (1).

53554261 is an equidigital number, since it uses as much as digits as its factorization.

53554261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 31.

The square root of 53554261 is about 7318.0776847475. The cubic root of 53554261 is about 376.9334477619.

Adding to 53554261 its reverse (16245535), we get a palindrome (69799796).

The spelling of 53554261 in words is "fifty-three million, five hundred fifty-four thousand, two hundred sixty-one".