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55956001 = 70277963
BaseRepresentation
bin1101010101110…
…1001000100001
310220021212012111
43111131020201
5103311043001
65315155321
71246422013
oct325351041
9126255174
1055956001
1129649632
12168a5b41
13b79237a
1476081b3
154da4851
hex355d221

55956001 has 4 divisors (see below), whose sum is σ = 55970992. Its totient is φ = 55941012.

The previous prime is 55955989. The next prime is 55956011. The reversal of 55956001 is 10065955.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55956001 - 29 = 55955489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55956011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3046 + ... + 11008.

It is an arithmetic number, because the mean of its divisors is an integer number (13992748).

Almost surely, 255956001 is an apocalyptic number.

It is an amenable number.

55956001 is a deficient number, since it is larger than the sum of its proper divisors (14991).

55956001 is an equidigital number, since it uses as much as digits as its factorization.

55956001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14990.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 55956001 is about 7480.3743890263. The cubic root of 55956001 is about 382.4860114212.

The spelling of 55956001 in words is "fifty-five million, nine hundred fifty-six thousand, one".

Divisors: 1 7027 7963 55956001