55546913 has 2 divisors, whose sum is σ = 55546914. Its totient is φ = 55546912.

The previous prime is 55546901. The next prime is 55546943. The reversal of 55546913 is 31964555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52896529 + 2650384 = 7273^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 55546913 - 2¹⁴ = 55530529 is a prime.

It is not a weakly prime, because it can be changed into another prime (55546943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27773456 + 27773457.

It is an arithmetic number, because the mean of its divisors is an integer number (27773457).

Almost surely, 2^55546913 is an apocalyptic number.

It is an amenable number.

55546913 is a deficient number, since it is larger than the sum of its proper divisors (1).

55546913 is an equidigital number, since it uses as much as digits as its factorization.

55546913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 38.

The square root of 55546913 is about 7452.9801421982. The cubic root of 55546913 is about 381.5516266454.

The spelling of 55546913 in words is "fifty-five million, five hundred forty-six thousand, nine hundred thirteen".