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56885473 is a prime number
BaseRepresentation
bin1101100100000…
…0000011100001
310222001002012101
43121000003201
5104030313343
65351130401
71260342601
oct331000341
9128032171
1056885473
112a123997
1217073a01
13ba29458
1477aac01
154ed9e4d
hex36400e1

56885473 has 2 divisors, whose sum is σ = 56885474. Its totient is φ = 56885472.

The previous prime is 56885471. The next prime is 56885497. The reversal of 56885473 is 37458865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56731024 + 154449 = 7532^2 + 393^2 .

It is a cyclic number.

It is not a de Polignac number, because 56885473 - 21 = 56885471 is a prime.

Together with 56885471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56885471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28442736 + 28442737.

It is an arithmetic number, because the mean of its divisors is an integer number (28442737).

Almost surely, 256885473 is an apocalyptic number.

56885473 is the 4032-nd centered heptagonal number.

It is an amenable number.

56885473 is a deficient number, since it is larger than the sum of its proper divisors (1).

56885473 is an equidigital number, since it uses as much as digits as its factorization.

56885473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The square root of 56885473 is about 7542.2458856762. The cubic root of 56885473 is about 384.5921875045.

The spelling of 56885473 in words is "fifty-six million, eight hundred eighty-five thousand, four hundred seventy-three".