53561461 has 2 divisors, whose sum is σ = 53561462. Its totient is φ = 53561460.

The previous prime is 53561449. The next prime is 53561467. The reversal of 53561461 is 16416535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43480836 + 10080625 = 6594^2 + 3175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53561461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53561467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26780730 + 26780731.

It is an arithmetic number, because the mean of its divisors is an integer number (26780731).

Almost surely, 2^53561461 is an apocalyptic number.

It is an amenable number.

53561461 is a deficient number, since it is larger than the sum of its proper divisors (1).

53561461 is an equidigital number, since it uses as much as digits as its factorization.

53561461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 53561461 is about 7318.5696006802. The cubic root of 53561461 is about 376.9503390367.

Adding to 53561461 its reverse (16416535), we get a palindrome (69977996).

The spelling of 53561461 in words is "fifty-three million, five hundred sixty-one thousand, four hundred sixty-one".