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55952331 = 3414371149
BaseRepresentation
bin1101010101110…
…0001111001011
310220021200011120
43111130033023
5103310433311
65315130323
71246405221
oct325341713
9126250146
1055952331
11296468a6
12168a39a3
13b7907b6
147606b11
154da3706
hex355c3cb

55952331 has 32 divisors (see below), whose sum is σ = 79833600. Its totient is φ = 34809600.

The previous prime is 55952317. The next prime is 55952341. The reversal of 55952331 is 13325955.

55952331 is a nontrivial binomial coefficient, being equal to C(10579, 2).

It is not a de Polignac number, because 55952331 - 210 = 55951307 is a prime.

It is a super-2 number, since 2×559523312 = 6261326688667122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55952292 and 55952301.

It is not an unprimeable number, because it can be changed into a prime (55952341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375445 + ... + 375593.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 255952331 is an apocalyptic number.

55952331 is the 10578-th triangular number.

55952331 is a deficient number, since it is larger than the sum of its proper divisors (23881269).

55952331 is a wasteful number, since it uses less digits than its factorization.

55952331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its digits is 20250, while the sum is 33.

The square root of 55952331 is about 7480.1290764264. The cubic root of 55952331 is about 382.4776491703.

The spelling of 55952331 in words is "fifty-five million, nine hundred fifty-two thousand, three hundred thirty-one".

Divisors: 1 3 41 43 71 123 129 149 213 447 1763 2911 3053 5289 6109 6407 8733 9159 10579 18327 19221 31737 125173 262687 375519 433739 454897 788061 1301217 1364691 18650777 55952331