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50644025 = 5219106619
BaseRepresentation
bin1100000100110…
…0010000111001
310112021222112122
43001030100321
5100431102100
65005251025
71153316135
oct301142071
9115258478
1050644025
1126650673
1214b63a75
13a6525a3
146a243c5
1546a5985
hex304c439

50644025 has 12 divisors (see below), whose sum is σ = 66104400. Its totient is φ = 38382480.

The previous prime is 50644021. The next prime is 50644039. The reversal of 50644025 is 52044605.

It is not a de Polignac number, because 50644025 - 22 = 50644021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50643985 and 50644003.

It is not an unprimeable number, because it can be changed into a prime (50644021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52835 + ... + 53784.

It is an arithmetic number, because the mean of its divisors is an integer number (5508700).

Almost surely, 250644025 is an apocalyptic number.

It is an amenable number.

50644025 is a deficient number, since it is larger than the sum of its proper divisors (15460375).

50644025 is a wasteful number, since it uses less digits than its factorization.

50644025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106648 (or 106643 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 50644025 is about 7116.4615505179. The cubic root of 50644025 is about 369.9781457752.

The spelling of 50644025 in words is "fifty million, six hundred forty-four thousand, twenty-five".

Divisors: 1 5 19 25 95 475 106619 533095 2025761 2665475 10128805 50644025