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50255553 = 317985403
BaseRepresentation
bin1011111110110…
…1011011000001
310111120020122210
42333231123001
5100331134203
64553052333
71150110435
oct277553301
9114506583
1050255553
1126405817
12149b70a9
13a54781a
1469629c5
15462a803
hex2fed6c1

50255553 has 8 divisors (see below), whose sum is σ = 70949088. Its totient is φ = 31532864.

The previous prime is 50255539. The next prime is 50255563. The reversal of 50255553 is 35555205.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50255553 - 213 = 50247361 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50255553.

It is not an unprimeable number, because it can be changed into a prime (50255563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492651 + ... + 492752.

It is an arithmetic number, because the mean of its divisors is an integer number (8868636).

Almost surely, 250255553 is an apocalyptic number.

It is an amenable number.

50255553 is a deficient number, since it is larger than the sum of its proper divisors (20693535).

50255553 is a wasteful number, since it uses less digits than its factorization.

50255553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985423.

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 50255553 is about 7089.1151069791. The cubic root of 50255553 is about 369.0297271165.

The spelling of 50255553 in words is "fifty million, two hundred fifty-five thousand, five hundred fifty-three".

Divisors: 1 3 17 51 985403 2956209 16751851 50255553