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50997025 = 5217119993
BaseRepresentation
bin1100001010001…
…0011100100001
310112221220202201
43002202130201
5101023401100
65021013201
71156316242
oct302423441
9115856681
1050997025
1126871902
12150b4201
13a747171
146ab6cc9
15472536a
hex30a2721

50997025 has 12 divisors (see below), whose sum is σ = 66956652. Its totient is φ = 38397440.

The previous prime is 50996999. The next prime is 50997029. The reversal of 50997025 is 52079905.

It can be written as a sum of positive squares in 6 ways, for example, as 3013696 + 47983329 = 1736^2 + 6927^2 .

It is not a de Polignac number, because 50997025 - 215 = 50964257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50997029) 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, 59572 + ... + 60421.

It is an arithmetic number, because the mean of its divisors is an integer number (5579721).

Almost surely, 250997025 is an apocalyptic number.

It is an amenable number.

50997025 is a deficient number, since it is larger than the sum of its proper divisors (15959627).

50997025 is a wasteful number, since it uses less digits than its factorization.

50997025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120020 (or 120015 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 50997025 is about 7141.2201338427. The cubic root of 50997025 is about 370.8357659507.

The spelling of 50997025 in words is "fifty million, nine hundred ninety-seven thousand, twenty-five".

Divisors: 1 5 17 25 85 425 119993 599965 2039881 2999825 10199405 50997025