55512461 has 2 divisors, whose sum is σ = 55512462. Its totient is φ = 55512460.

The previous prime is 55512439. The next prime is 55512473. The reversal of 55512461 is 16421555.

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., 53743561 + 1768900 = 7331^2 + 1330^2 .

It is a cyclic number.

It is not a de Polignac number, because 55512461 - 2¹⁰ = 55511437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55512481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27756230 + 27756231.

It is an arithmetic number, because the mean of its divisors is an integer number (27756231).

Almost surely, 2^55512461 is an apocalyptic number.

It is an amenable number.

55512461 is a deficient number, since it is larger than the sum of its proper divisors (1).

55512461 is an equidigital number, since it uses as much as digits as its factorization.

55512461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6000, while the sum is 29.

The square root of 55512461 is about 7450.6684934977. The cubic root of 55512461 is about 381.4727267597.

The spelling of 55512461 in words is "fifty-five million, five hundred twelve thousand, four hundred sixty-one".