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55000651 = 181303871
BaseRepresentation
bin1101000111001…
…1111001001011
310211111022201011
43101303321023
5103040010101
65242504351
71235332516
oct321637113
9124438634
1055000651
1129056892
12165050b7
13b519584
147439d7d
154c66751
hex3473e4b

55000651 has 4 divisors (see below), whose sum is σ = 55304704. Its totient is φ = 54696600.

The previous prime is 55000643. The next prime is 55000667. The reversal of 55000651 is 15600055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15600055 = 53120011.

It is a cyclic number.

It is not a de Polignac number, because 55000651 - 23 = 55000643 is a prime.

It is a super-2 number, since 2×550006512 = 6050143220847602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55000681) 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, 151755 + ... + 152116.

It is an arithmetic number, because the mean of its divisors is an integer number (13826176).

Almost surely, 255000651 is an apocalyptic number.

55000651 is a deficient number, since it is larger than the sum of its proper divisors (304053).

55000651 is a wasteful number, since it uses less digits than its factorization.

55000651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304052.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55000651 is about 7416.2423773768. The cubic root of 55000651 is about 380.2967465078.

The spelling of 55000651 in words is "fifty-five million, six hundred fifty-one", and thus it is an aban number.

Divisors: 1 181 303871 55000651