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52556001 = 317518667
BaseRepresentation
bin1100100001111…
…1000011100001
310122220010021120
43020133003201
5101423243001
65114242453
71205501331
oct310370341
9118803246
1052556001
1127737113
1215726429
13ab71934
146da10c1
154932236
hex321f0e1

52556001 has 4 divisors (see below), whose sum is σ = 70074672. Its totient is φ = 35037332.

The previous prime is 52555999. The next prime is 52556087. The reversal of 52556001 is 10065525.

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.

It is a cyclic number.

It is not a de Polignac number, because 52556001 - 21 = 52555999 is a prime.

It is a super-2 number, since 2×525560012 = 5524266482224002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52556701) 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, 8759331 + ... + 8759336.

It is an arithmetic number, because the mean of its divisors is an integer number (17518668).

Almost surely, 252556001 is an apocalyptic number.

It is an amenable number.

52556001 is a deficient number, since it is larger than the sum of its proper divisors (17518671).

52556001 is a wasteful number, since it uses less digits than its factorization.

52556001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17518670.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 52556001 is about 7249.5517792481. The cubic root of 52556001 is about 374.5767099367.

The spelling of 52556001 in words is "fifty-two million, five hundred fifty-six thousand, one".

Divisors: 1 3 17518667 52556001