Search a number
-
+
55250797 = 744917579
BaseRepresentation
bin1101001011000…
…0111101101101
310211222000211211
43102300331231
5103121011142
65252114421
71240424020
oct322607555
9124860754
1055250797
1129207818
1216605a11
13b5a63a4
1474a31b7
154cb5917
hex34b0f6d

55250797 has 8 divisors (see below), whose sum is σ = 63288000. Its totient is φ = 47249664.

The previous prime is 55250791. The next prime is 55250809. The reversal of 55250797 is 79705255.

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

It is not a de Polignac number, because 55250797 - 215 = 55218029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250791) 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, 5647 + ... + 11932.

It is an arithmetic number, because the mean of its divisors is an integer number (7911000).

Almost surely, 255250797 is an apocalyptic number.

It is an amenable number.

55250797 is a deficient number, since it is larger than the sum of its proper divisors (8037203).

55250797 is a wasteful number, since it uses less digits than its factorization.

55250797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18035.

The product of its (nonzero) digits is 110250, while the sum is 40.

The square root of 55250797 is about 7433.0879854876. The cubic root of 55250797 is about 380.8724115416.

The spelling of 55250797 in words is "fifty-five million, two hundred fifty thousand, seven hundred ninety-seven".

Divisors: 1 7 449 3143 17579 123053 7892971 55250797