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55023501 = 3131410859
BaseRepresentation
bin1101000111100…
…1011110001101
310211112111001110
43101321132031
5103041223001
65243202233
71235456241
oct321713615
9124474043
1055023501
1129071a75
1216516379
13b526ab0
147444421
154c6d3d6
hex347978d

55023501 has 8 divisors (see below), whose sum is σ = 79008160. Its totient is φ = 33860592.

The previous prime is 55023491. The next prime is 55023503. The reversal of 55023501 is 10532055.

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

It is not a de Polignac number, because 55023501 - 213 = 55015309 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55023503) 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, 705391 + ... + 705468.

It is an arithmetic number, because the mean of its divisors is an integer number (9876020).

Almost surely, 255023501 is an apocalyptic number.

It is an amenable number.

55023501 is a deficient number, since it is larger than the sum of its proper divisors (23984659).

55023501 is a wasteful number, since it uses less digits than its factorization.

55023501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410875.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55023501 is about 7417.7827549747. The cubic root of 55023501 is about 380.3494039303.

Adding to 55023501 its reverse (10532055), we get a palindrome (65555556).

The spelling of 55023501 in words is "fifty-five million, twenty-three thousand, five hundred one".

Divisors: 1 3 13 39 1410859 4232577 18341167 55023501