55604873 has 2 divisors, whose sum is σ = 55604874. Its totient is φ = 55604872.

The previous prime is 55604867. The next prime is 55604881. The reversal of 55604873 is 37840655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52809289 + 2795584 = 7267^2 + 1672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55604873 is a prime.

It is a super-2 number, since 2×55604873² = 6183803802692258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55604833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27802436 + 27802437.

It is an arithmetic number, because the mean of its divisors is an integer number (27802437).

Almost surely, 2^55604873 is an apocalyptic number.

It is an amenable number.

55604873 is a deficient number, since it is larger than the sum of its proper divisors (1).

55604873 is an equidigital number, since it uses as much as digits as its factorization.

55604873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 55604873 is about 7456.8675058633. The cubic root of 55604873 is about 381.6842895528.

The spelling of 55604873 in words is "fifty-five million, six hundred four thousand, eight hundred seventy-three".