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50240551 = 52196431
BaseRepresentation
bin1011111110100…
…1110000100111
310111112111002011
42333221300213
5100330144201
64552455051
71150015624
oct277516047
9114474064
1050240551
11263a5519
12149aa487
13a540a4a
14695b34b
154626151
hex2fe9c27

50240551 has 4 divisors (see below), whose sum is σ = 50337504. Its totient is φ = 50143600.

The previous prime is 50240549. The next prime is 50240573. The reversal of 50240551 is 15504205.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50240551 - 21 = 50240549 is a prime.

It is a super-2 number, since 2×502405512 = 5048225929567202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50240501) 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, 47695 + ... + 48736.

It is an arithmetic number, because the mean of its divisors is an integer number (12584376).

Almost surely, 250240551 is an apocalyptic number.

50240551 is a deficient number, since it is larger than the sum of its proper divisors (96953).

50240551 is an equidigital number, since it uses as much as digits as its factorization.

50240551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96952.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 50240551 is about 7088.0569269723. The cubic root of 50240551 is about 368.9930032481.

Adding to 50240551 its reverse (15504205), we get a palindrome (65744756).

The spelling of 50240551 in words is "fifty million, two hundred forty thousand, five hundred fifty-one".

Divisors: 1 521 96431 50240551